Drag each label to the correct location on the diagram.
Identify how a hormone molecule performs its function.
formation of mRNA
in the nucleus
secretion of hormone
by tissue
initiation of DNA
replication because
of a signal given
by the hormone
synthesis of protein
molecule by mRNA
and tRNA
secretion of protein
by the cell
binding of the
hormone molecule
with its receptor
of the cell
Answers
Answer:
i know its not the official answer, but i hope this helps :)
Explanation:
Hormones binding to receptors initiate protein synthesis.
What are hormones?Hormones are chemical messengers produced by the body by endocrine glands and released into the blood to effect certain changes in the body.
Hormones are secreted from the cell and binds to its receptor. This initiates several responses in the body such as:
formation of mRNA in the nucleusinitiation of DNA replication because of a signal given by the hormonesynthesis of protein molecule by mRNA and tRNAsecretion of protein by the cellIn conclusion, hormones send messages to cells and when they bind to their receptors produce changes.
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Related Questions
Growing rain gardens like the one shown here is one way communities can help the environment. These shallow gardens contain
native plants with deep roots, wild grasses, and flowers. They are established near runoff sources, like driveways, to catch rainwater
before it flows into sewers and ditches. Capturing clean rainwater helps replenish local groundwater, instead of going to waste down
a sewer. Rain gardens naturally infiltrate water that may have picked up chemicals from lawns, roofs, or driveways while also
providing a habitat for local wildlife. Based on this information, what is another environmental benefit of rain gardens?
es )
They absorb air pollution caused by local factories.
They prevent weeds from killing non-native plant life.
They provide native fruits and vegetables for farmer's markets.
They soak up excess water that can potentially lead to flooding.
Submit
Ecology and Interdependence
Please help
A)they absorb air pollution caused by local factories
B)they prevent weeds from killing non native plant life
C)they provide native fruits and vegetables for farmers markets
D)they soak up excess water that can potentially lead to flooding
Answers
Answer:
The correct option is D) They soak up excess water that can potentially lead to flooding.
Explanation:
A rain garden can be described as a depressed area in a landscape which comprises of plants like native shrubs and flowers. The primary purpose of building a rain garden is to hold and soak in rainwater. This causes to prevent a situation such as a flood because most of the excess water is trapped by the plants. Hence, situations such as erosion and flooding can be decreased by rain gardens.
What are the 4 things that make plants unique to their algae ancestors?
Answers
The four ways by which land plants later evolved and became unique from their algal ancestors are:
Explanation:
The ancestors or close relatives of land plants are the green algae also called the charophytes. Land plants became unique from their algal ancestors due to evolutionary changes required for adaption with the environment.
Alteration in the successive generations of plant species, produces gametes and sporophytes through mitosis and meiosis. Embryonic growth at multicellular level, obtains nutrient from parent cells.Plants produces spores through sporangia and have multicellular gametangiaGrowth of plant occurs through apical meristems by differentiation of tissuesFour things that make plants unique to their algae ancestors are:
1. Plants have connective tissues that helps to transport nutrients and water throughout the plant. While in algae, each cell absorbs its own water. This makes algae non vascular.
2. Plants are multi-cellular that consists of chloroplasts, cellulose walls and also have the ability to make embryos while algae are generally single celled.
3. Algae majorly thrives in water that uses the minerals found in water to produce their own food but some can live on land and even on snow. However, Plants mostly grow on land because they use sunlight and CO2 to keep some of its most important biologic processes going on.
4. The mode of reproduction in plants is more complex compared to that of algae which is primitive.
In your opinion, what are the main factors that cause pollution?
Answers
Exhaust from factories and industries. ...
Mining operations. ...
Indoor air pollution.
Answer:
I my opinion i think that the main causes of pollution is planes and cars as they use fuel to run. Deforestation is one major factor as there less trees to absorb the CO 2 (Carbon Dioxide). burining fo fossil fuels can also lead to many polluted areas
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The law of superposition states that layers of sedimentary rock are
A.
ordered in a repeating pattern, with every third layer being identical.
B.
ordered in a time sequence, with the oldest layers on the bottom and the youngest on top.
C.
ordered according to the age of the volcano that created the layer.
D.
ordered in a random fashion, with the age of the rock varying wildly from one layer to the next.
Answers
Sedimentary Rock layers over time and if there is a cliff area where you can see all the layering, there is no rhyme or reason to it, just simply grows with time. B
The purpose of mitosis is to produce what
The purpose of meiosis is to produce what
ANSWER ASAP!!!!!!!!!!!!!
Answers
Meiosis produces only sex cells.
Mitosis produces two identical cells for growth and repair, while meiosis produces sex cells with genetic variation for sexual reproduction.
Explanation:The purpose of mitosis is to produce two identical daughter cells that have the same number of chromosomes as the parent cell. This process is crucial for growth, cell repair, and replacement in the body. An example of where mitosis occurs is in your skin cells, which are constantly being renewed and replaced.
On the other hand, the purpose of meiosis is to produce sex cells or gametes (sperm and egg cells) for sexual reproduction. These cells are not identical and they contain half the number of chromosomes compared to the parent cell. This genetic variation ensures the survival and evolution of species. For instance, in humans, meiosis in males produces sperm cells, and in females, it produces egg cells.
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Drag each tile to the correct location on the chart. Each tile can be used more than once.
Categorize each mutation by its most likely effect on the organism.
harmful
beneficial
neutral
Genetic Mutation
Effect
A mutation in the HBB gene, which codes for
hemoglobin, produces red blood cells that
are rigid and sickle-shaped
A mutation in the EYCL3 gene, which helps
regulate eye color, produces two
different colored eyes.
A mutation in the CFTR gene, which codes
for a cell transport protein, causes a buildup
of a thick mucus that covers the organs.
A mutation in the LRP5 gene, which codes
for a cell membrane protein, increases
bone density
beneficial
Reset
Next
2020 Edmentum. All rights reserved.
Answers
Answer:
Mutations are errors in genetic information and code that cause physical and functional alterations in living organisms. Some of them may be beneficial, harmful, or not produce significant alterations (neutral).
Explanation:
When categorizing each mutation as beneficial, harmful, or neutral, it's observed that:
A mutation in the HBB gene, which codes for hemoglobin, produces red blood cells that are rigid and sickle-shaped and is harmful.
Sickle cell anemia is caused by the HBB gene mutation, producing crescent-shaped cells, or "YES", which are not functional and very short-lived, causing hemolytic anemia. Deformity in red blood cells can cause blockage of small-caliber arteries, causing other symptoms other symptoms related to the disease.
A mutation in the EYCL3 gene, which helps regulate eye color, produces two different colored eyes, is neutral.
Under normal conditions, EYCL gene determine the color of the eyes. A mutation of this gene can cause the same individual to have a green and blue eye, which is not a serious health problem, but rather aesthetic.
A mutation in the CFTR gene, which codes for a cell transport protein, causes a buildup of a thick mucus that covers the organs, which represents a harmful mutation.
Cystic fibrosis, a disease caused by a mutation in the CFRT gene, produces the excessive thick mucous secretion that lines up the lungs and other organs - liver, pancreas, intestine - that characterizes this condition.This causes a functional alteration of the affected organ. It is also known as mucoviscidosis.
A mutation in the LRP5 gene, which codes for a cell membrane protein, increases bone density, which can be harmful, when it produces symptoms or beneficial.
Increased bone density is called osteopetrosis, and depends on the LRP5 -Low density lipoprotein receptor-related protein 5- gene mutation, that can cause bone pain in childhood and adolescence in just over half of patients, but represents an increase in bone resistance and reduces the risk of fractures.
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What are the characteristics of the reproductive strategy shown in the image?
protection from predators
low parental involvement
high percentage of offspring reach reproductive age
offspring independent after birth
Answers
(Image contains a Dog surrounded by her puppies)
Answer: In that case the right option is protection from predators.
Explanation.
Dogs protect their puppies from predators, there are many kinds of predators that are threats to domestic or guard dogs. For example, the two main types are birds of prey and coyotes. They are excellent hunters especially of the dogs and cats weighing less than 25 pounds. They can easily took dogs of smaller sizes for which the mother dog always protect her puppies from predators when they are small. Dogs have the strong instinct of protection for the survival of their off springs.
Answer:
protection from predators
I hope this helps
Which statement BEST describes a scientific theory?
OA) No scientists believe it is correct.
OB) A few scientists believe it is correct.
OC) Many scientists believe it is correct.
OD) All scientists believe it is correct.
Answers
I think C. Many scientists believe it is correct. because a theory can not be proven therefore some we'll educated scientists could still reasonably believe the theory to be false, even when I hasn't been proven incorrect.
Which molecule reads the amino acid sequence and builds the protein?
Answers
Answer:
The molecule of mRNA provides the code to synthesize a protein. In the process of translation, the mRNA attaches to a ribosome. Next, tRNA molecules shuttle the appropriate amino acids to the ribosome, one-by-one, coded by sequential triplet codons on the mRNA, until the protein is fully synthesized.
Answer: transfer RNA (tRNA)
Explanation: During protein synthesis, the mRNA strand produced by copying the DNA sequence moves to the cytoplasm where it gets attached to the ribosome. A ribosome is a site for protein synthesis. Protein synthesis is initiated when the ribosome comes in contact with the AUG codon (start codon). The mRNA moves through the ribosome three bases at a time where the tRNA brings the correct amino acid from the cytoplasm and adds it to the growing peptide chain.
Define tissue with regards to anatomy *
A group of structurally and functionally related cells that come together to perform
common functions
O
A series of different cells in the same area
O
Multiple sheets of thin paper used to clean your nose
O
The smallest structural and functional unit of an organism
Answers
Answer:
A group of structurally and functionally related cells that come together to perform common functions
Explanation:
Each cell types has special features that enable it to perform a particular function efficiently. When a group of specialized, structurally and functionally related cells assemble together they form a tissue.
Tissue, in the context of anatomy, refers to a group of structurally and functionally related cells that come together to perform common functions. Tissues are made up of specialized cells that work together to carry out specific tasks in an organism. They are organized into higher levels of organization, such as organs and organ systems.
Explanation:Tissue, in the context of anatomy, refers to a group of structurally and functionally related cells that come together to perform common functions. These cells can be of the same type or different types, but they work together to perform specific tasks within an organism. For example, muscle tissue consists of cells that contract and generate force, allowing the body to move.
One important aspect of tissue is that it is made up of cells that are specialized for specific functions. This specialization allows tissues to perform their designated roles efficiently. Each type of tissue has characteristic cell types and structures that enable them to carry out their specific functions.
Tissues are organized into higher levels of organization, such as organs and organ systems, which work together to maintain the overall function of an organism. Understanding tissue structure and function is essential in the field of biology, as it helps explain how different parts of the body work together and how disruptions in tissue function can lead to health issues.
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Which macromolecule is a primary component of cell walls, and which argument provides evidence for how the structure of this molecule relates to its purpose within the cell wall?
Answers
Cellulose, a complex carbohydrate that helps to sustain and preserve the plant cell, is a macromolecule that is a major component of cell walls.
The main element of the cell wall is cellulose, a polymerized carbohydrate that is arranged into microfibrils. This macromolecule's primary job is to sustain, fortify, and safeguard the plant cell.
Its own structure is the justification that best shows how important cellulose is to the cell wall. Hemicellulose, a different carbohydrate, connects the network of microfibrils formed by cellulose. These microfibrils are structured in at least three layers. Cell development is possible because of the structure's strength, resistance, and elasticity.
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According to reports by National Public Radio, sales of products labeled Non-GMO have more than doubled over the past two years, jumping from $7 billion to $16 billion. At the same time, organic foods have also been gaining in popularity, though at a much slower rate. What do you know about GMO's? All organic foods contain GMO ingredients, as set forth in USDA guidelines. 85% of the U.S. corn is GMO; modified to be resistant to herbicides. The U.S. does not require that GMO foods be labelled as such. Example of GMO: cross-pollinating plants for a desired trait. Technology now allows us to transfer genes between organisms of different species and even kingdoms. Extensive testing has been conducted on GMO-foods to ensure that there will be no adverse allergic reactions or health risks.
Answers
Genetically modified organisms are those organisms in which certain gene is inserted to get the desired beneficial results.
Explanation:
A genetically modified organism is an organism or plant altered for beneficial traits which would not have been possible by the traditional mating process or recombination techniques.
Genetic engineering is the technique involved for the construction of gene of interest and inserting them in the host species for getting expressed.
Many fruitful results have come out like a tomato of long shelf life k/a flavr savr.
Apart from molecular techniques used for cloning, CRISPR is the recent innovation which had made it very simple.
The GMOs can solve the food problem of the world as Single-cell proteins and longer shelved life food.
Disease resistant plants can be formed for better yields.
Nutrition level of food can be increased.
Example of GMO are canola, corn, papaya, soy and many animals are also on the list.
Answer: the first person is correct
Explanation:
Which sentence best shows the results of a substitution mutation in the DNA
Answers
Answer: Swapped nucleotide during the DNA replication.
Explanation:
For example, during replication, thymine nucleotide must be inserted in a place of guanine nucleotide.
In nature, animal populations are dynamic. This means they are changing due to various circumstances. The population of rabbits in certain areas of the world are affected by the population of foxes, for example. Using reasoning, which model shows the relationship between the two populations?
Answers
Answer:
The model representing this relationship is : Prey-Predator Relationship.
Explanation:
In a prey-predator relationship, the population size of each, prey and predator is affected by the population of the other.This is distinctly observed when the predator has a preference for a particular prey.In the given example, the rabbits are the prey and the foxes are the predators.Increase in the population of the rabbits will make them easily accessible to the foxes, that on hunt them for their food. On obtaining sufficient food the foxes can reproduce well and will produce more offspring, so the population size of the foxes would also increase.After some time, the continued hunting of the rabbits will cause its death rate to increase more than its birth rate. This will result in the decline in the rabbit population.The reduced rabbit population would reduce the chances of them being accessed and hunted by the foxes. Due to decrease in food availability, the foxes reduce their reproduction rate, as a result the fox population gradually decreases.This is followed by an increase in rabbit population.This cycle continues.To carry out essential life processes the body must maintain?
Answers
Answer: homeostasis
Explanation:
Answer: homeostasis
Explanation:
Homeostasis depends on the body's ceaselessly carrying on many activities. Its major activities or functions are responding to changes in the body's environment, exchanging materials between the environment and cells, metabolizing foods, and integrating all of the body's diverse activities.
Name
Class
Date
Biology/Life Sciences Standards: Genetics
Amino acids
IRNA
Growing protein
III - Anticodon
UGU
GU
mRNA
CCA (ACA) CÁC CUU CCG GGA CCU CÁC CCC CUA AGU
Codon
Fiqure 2-10 Translation A protein molecule is synthesized on a ribosome
when tRNA translates the genetic information in mRNA.
Review Questions
30 Genetic information is contained
in code words. Each code word con-
sists of three
A amino acids.
B nitrogen bases.
C codons.
D anticodons.
Which statement is true about
TRNA?
A It transcribes genetic informa-
tion in DNA.
B It translates genetic information
in mRNA
C It transfers amino acids to the
nucleus.
D It transfers mRNA to a
ribosome.
311
Where is the genetic information in
mRNA translated into a sequence
of amino acids?
A in the nucleus
B inside a DNA molecule
con a ribosome
D in a complementary base
Answers
Answer:
30.
B. nitrogen basesB. It translates genetic information in mRNA31.
C. On a ribosomeExplanation:
Translation:
Translation is the final step in the central dogma of molecular biology that involves the decoding and translation of the codons on mRNA to amino acid sequence.The genetic code is a scheme of 64 triplet nitrogeneous base codons that code for 20 amino acids.A tRNA molecule reads this codon sequence with the help of complementary anticodons and helps transport an amino acid to the ribosome for addition to the growing polypeptide chain.Protein synthesis occurs in the rough endoplasmic reticulum (RER) in the cytoplasm.Select the correct answer from each drop-down menu.
What is a type I survivorship curve?
A type I survivorship curve is a
. and shows Individuals that survive from childhood to adulthood. The greatest number
of deaths occurs during old age. An example of a type I curve is seen in
choices are concave curve,convex curve,straight line
next blank choice is humans oysters small birds
Answers
A graphical representation showing the number of an individual surviving the ages in various species groups is called the survivorship curve.
The correct answer is:
Option B. Convex curve
This can be explained as:
Type I survivorship graph is a convex arc that symbolizes individual survival momentum from youth to grown-up stage.It denotes high life proximity in earlier and mid-life whereas death rates get more elevated in elder age.This curve is plotted on the graph as convex in shape.Also, it represents the K strategy of the population.Therefore, it is a convex curve.
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A type I survivorship curve is a convex curve, and shows individuals that survive during old age. An example of a convex curve in a type I survivorship curve is humans.
A type I survivorship curve is a convex curve and shows individuals that have a high probability of surviving through early and middle life but a steep decline in the number of survivors in old age. This type of curve typically represents species that invest a lot of time and resources into the care of their offspring, resulting in low mortality rates in the early stages of life. Humans are a prime example of a species with a type I survivorship curve. Other examples include large mammals such as elephants and whales. These species tend to produce fewer offspring but provide substantial parental care to ensure the survival of their young. The convex shape of the curve illustrates the high survival rate of individuals until they reach old age, at which point mortality rates increase sharply. This pattern is indicative of K-selected species, which focus on quality over quantity in their reproductive strategy.
The correct question is:
Select the correct answer from each drop-down menu. What is a type I survivorship curve? A type I survivorship curve is a ◻ , and shows individuals that survive during old age. An example of concave curve h in ◻ Hint: Concave forms a "cave" convex curve straight line
Fungi grow best in _______ and ________ areas.
Question 2 options:
cool; humid
warm; humid
warm; dry
cool; dry
Answers
Answer:
warm and humid
Explanation:
Fungi grow best in warm and humid areas. Only a few fungi are found in drier regions or in ecosystems with little to no organic matter, and soil rich in organic matter is a good habitat for many species.
What is the suitable temperature for fungus growth?Some fungi survive their whole life cycle on or inside their hosts, whether they be plants, animals, or both.
Warm temperatures are ideal for fungi growth. Some fungal species do grow better in warm temperatures (70–90°F), however, some also perform well at extremely high temperatures (130–150°F) and extremely low temperatures (below 32°F) (below freezing).
Mycelium is a network made up of many connected hyphae, which are the thread-like structure of fungi. Because different fungi vary in their complexity.
Therefore, fungi grow best in warm and humid areas option B is correct.
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A Mother who is homozygous for Huntington's disease and a father who is homozygous normal want to have a baby. What genotypes and phenotypes are possible for their child? Show punnet square
Answers
A dominant allele codes for Huntington's disease, while the recessive allele codes for normal phenotype. The genotype of the progeny will be heter0zyg0us Hh, and they will express the disease.
--------------------------------------------
Huntington's disease is an autosomal and dominant affection, caused by a mutation in the gene that codifies for the Huntingtin protein (Htt).
Let us say that
H is the dominant allele that codes for the diseaseh is the recessive allele that codes for normal phenotype
Cross: mother h0m0zyg0us dominant with father h0m0zyg0us recessive
Parentals) HH x hh
Gametes) H H h h
Punnett square) H H
h Hh Hh
h Hh Hh
F1) 100% of the progeny is expected to be heter0zyg0us, Hh, and express the disease.
The only possible genotype for children is to be heter0zyg0us for the trait and express the disease.
----------------------------
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Huntington's disease is inherited in an autosomal dominant manner. The offspring of a mother with homozygous Huntington's and a father who is homozygous normal will all inherit and develop Huntington's disease due to the dominant inheritance pattern.
Explanation:The question is about Huntington's disease, which is an autosomal dominantly inherited disease. This means that if one parent possesses a mutated gene for Huntington's (let's denote it as H for Huntington's and n for normal), they can pass it on to their offspring and the offspring will develop the disease. As the mother is homozygous for Huntington's disease(HH), and the father is homozygous normal(nn), we can use a Punnett square to predict the genotypes and phenotypes of the offspring.
The Punnett square will look as follows:
Mother's genes: H H Father's genes: n n
Resulting offspring possibilities:
Hn (Huntington's disease) Hn (Huntington's disease)
As you can see, all possible combinations result in the child being heterozygous but still having Huntington's disease because of the dominant inheritance pattern of this disease. Therefore, all the offspring will inherit and develop Huntington's disease.
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what method can scientists use to determine when the fossil above appeared on earth?
Answers
Answer:
There are two ways
1) By the depth at which the fossil was found(i.e. If it was found near the surface of Earth, then its a fossil which was just recently decomposed, but if it was deep inside then it's old.
2) By method of Carbon Dating
Answer:
-relative age dating
Explanation:
t meant that scientists could suddenly establish the actual ages of all their rocks and fossils! The method of using radioactive decay to determine the age of rocks is called radiometric dating.
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According to the scientific process how should a scientific question best be answered
Answers
Answer:
Scientific questions must be testable, which means that they ask about specific objects, organisms, or events in the world, and can be answered by experiment through measuring and analyzing data.
Answer: The correct answer would be conducting experiments
An example of a land feature formed by river erosion is
a.
alluvial fans
c.
soil
b.
deltas
d.
oxbow lakes
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
An example of a land feature formed by river erosion is alluvial fans
Explanation:
Alluvial fans entails when water caused an erosion on land and makes it to form a likely shape of triangle.
Answer: D
Explanation:
Erosional landforms include V-shaped valleys, interlocking spurs, waterfalls and gorges. Meanders and oxbow lakes are formed from erosion and deposition. Depositional landforms include floodplains
Scientists are testing the effect of different scrubber technologies on the removal of pollutants from coal power plants. The scrubbers use a slurry of limestone and water. Which of the following best describes the impact of modifying the slurry by increasing the amount of limestone? The amount of sulfur dioxide released will decrease. A The amount of ground-level ozone released will decrease. B The amount of water released will increase. C The amount of carbon monoxide released will increase.
Answers
Answer:
When a water and limestone slurry is used as a scrubber, the impact of modifying the slurry by increasing the amount of limestone has as a consequence that the amount of sulfur dioxide released will decrease.
Explanation:
One of the consequences of the use of coal as fuel is the emission of toxic gases, one of which is sulfur dioxide (SO₂), a colorless and toxic gas that can affect the health of humans and animals. That is why SO₂ scrubbers are necessary for the removal of this gas.
One of the most commonly used SO₂ scrubbers is the suspension of water and limestone, since the calcium (Ca) contained in the limestone reacts with the SO₂ to form calcium sulfide (CaS), which precipitates as a solid, decreasing the emission of SO₂ to the environment.
It is for this reason that, by increasing the amount of limestone in the scrubber slurry, more SO₂ will react, and the amount released from this gas will decrease.
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When a slurry of water and limestone is used as a scrubber, increasing the amount of limestone results in a decrease in the amount of sulfur dioxide released.
The scrubbers use a slurry of limestone and waterThe calcium (Ca) contained in the limestone reacts with the SO₂ to form calcium sulfide (CaS), which precipitates as a solid, decreasing the emission of SO₂ to the environment.
There are processes that recover SO2 in the form of some waste product. commercial interest and the processes with formation of residues. The methods that only aim to remove SO2, without recovery, can convert a problem of air pollution in water pollution or waste disposal problem solids, while recovery methods need a market for the product Final.
With this information, we can conclude that when a slurry of water and limestone is used as a scrubber, increasing the amount of limestone results in a decrease in the amount of sulfur dioxide released.
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why is atp important to biochemical reactions
Answers
Answer:
ATP stands for adenosine triphosphate. It is a molecule found in the cells of living organisms. It is said to be very important because it transports the energy necessary for all cellular metabolic activities. ... ATP consists of one adenine molecule and three phosphate molecules.
Explanation:
Answer:
ATP is important as it transports the energy by its hydrolysis for different biochemical reactions required for cellular metabolic activities.
Explanation:
ATP is important in biochemical reactions due to following reasons:
ATP is able to storage and transportation of energy within cells. ATP helps in the synthesis of nucleic acids. The molecule acts in both of endergonic and exergonic processes of reactions and makes energetically unfavourable biochemical reactions possible .It is important in aerobic respiration, fermentation, cellular respiration, photophosphorylation and photosynthesis. The energy releasing ability of the ATP lies on its phosphate group; which when broken releases energy as an exothermic reaction.
What is the probability that a mother with type AB blood and a father with type O blood will have a child with type O blood?
Answers
Each parent has a 50% chance of passing down the O gene. So each child has a 25% chance of ending up with an O blood type.
Can AB and O produce AB?An AB and O couple producing an AB child cannot be explained in terms of the usual inheritance patterns. One would not expect the cord blood result to be AB when the mother is type O.
Thus, there is 25% possibility.
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One way to increase the number of organisms in an endangered species is to let the few remaining individuals o
that species breed. However, this breeding may also lead to species extinction because inbreeding over a short
period of time may -
F produce a different species
increase fertility
o increase beneficial mutations
o reduce genetic diversity
2m
Chrome OS System
Sign-in has changed
Answers
Final answer:
Inbreeding among the remaining individuals of an endangered species may lead to a reduction in genetic diversity, causing inbreeding depression and increasing the risk of extinction.
Explanation:
One concern with allowing the few remaining individuals of an endangered species to breed is that it may lead to a reduction in genetic diversity. Inbreeding, which is the mating of closely related individuals, can often cause adverse effects known as inbreeding depression. This mating strategy tends to bring together deleterious recessive mutations, which can result in abnormalities and increased susceptibility to diseases. For example, if a rare recessive allele causing disease is present within a population, the likelihood of two carriers mating and passing the disease to their offspring increases dramatically when the population size is small and inbreeding occurs. Therefore, the option that correctly completes the statement on how inbreeding over a short period of time may lead to species extinction is through the reduction of genetic diversity.
Which of the following choices is not evidence supporting the theory of plate tectonics?
Answers
fossil assemblages is NOT evidence supporting the theory of plate tectonics.
Explanation:
Supporting evidence of tectonic plate movements include;
ancient cave drawing found in Francethe jigsaw puzzle-like fit of the continentstraces of glaciation found in Africa and South AmericaRather than fossil assemblage, similar fossils of a species found in different continents straddling a vast ocean are evidence of tectonic plate movement.
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Answer:
its B
Explanation:
trust
Researchers inserted a gene for bioluminescence into a variety of organisms, such as mosquito larvae. What is
this technology called?
A) gel electrophoresis
B) polymerase chain reactions
C) DNA sequencing
D) genetic engineering
Answers
Answer;
D generic engineering.
Explanation: Genetic engineering is the process of altering the genetic characteristics of species by substituting another species gene into them using biotechnology. It is the type of technology using to change the genetic make-up of cells.
It Is a genetic modification or manipulation to to transfer a gene of bioluminescence into that of mosquito lavae.
Final answer:
The technology used to insert a gene for bioluminescence into organisms is called genetic engineering, involving isolating the desired gene (like GFP), using restriction endonucleases to cut DNA, and creating a GMO that expresses the new trait. d)
Explanation:
The technology used when researchers insert a gene for bioluminescence into organisms is called genetic engineering. This process involves several steps, starting with isolating the DNA of interest, which in the case of getting E. coli cells to glow, would be the green fluorescent protein (GFP) that originates from jellyfish. Next, both the target DNA and the cloning vector DNA are cut using enzymes known as restriction endonucleases to create 'sticky ends' that facilitate the joining of the GFP gene into the vector DNA. The combination is then introduced into the organism, creating a transgenic or genetically modified organism (GMO) that can express the new trait, in this case, bioluminescence.
Which of the following types of reproduction is evolution observable?
Asexual
Sexual
Detrimental
Analogous
Answers
In Sexual reproduction evolution takes place.
Explanation:
In sexual reproduction, the gametes from the two parents fuse to form a zygote and consequently an organism. The gametes from the two parents provide different alleles for a trait. The different genetic variant or alleles found will cause genetic variation.
The offspring can survive and adapt to the new environment. This leads to natural selection and evolution.
In asexual reproduction changes only occur if mutation takes place otherwise the progeny remains genetically identical so less chance of evolution.
Analogous are the organs having similar function but different origin in different organisms.
Detrimental effects are small or negligible effect of mutation on organism due to the exposure of chemicals or rays.
Only those mutations are heritable which occur in germ cells, mutations of somatic cell do no pass to other generation. Detrimental effect is mainly seen in somatic cells.
1. Describe the pattern of air circulation between an
area of low pressure and an area of high pressure.
Answers
Answer:
The sinking of cold air creates regions of high pressure and this air travels to lower pressure regions produced by the rising motion of warm air. This process results in air circulation.
Explanation: