"An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene. An organism which has two different alleles of the gene is called heterozygous."
The genetic condition of an organism that has two identical alleles for a given trait is called homozygous.
Explanation:In the language of genetics, the genetic condition of an organism that has two identical alleles for a given trait is called homozygous.
For example, if an organism has two alleles for flower color, and both alleles are the same, such as two dominant alleles (YY) or two recessive alleles (yy), then the organism is homozygous for flower color.
Homozygous individuals will have the same physical appearance regardless of whether they have two copies of the trait or one copy of the dominant trait and one copy of the recessive trait.
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Teak, a highly prized tropical hardwood, is used extensively for outdoor furniture. Unfortunately, teak is grown in only a few locations throughout the world and native trees are becoming scarce due to repeated harvesting and the clear-cutting of forests. Logging teak forests disrupts the natural habitat of many other species and reduces local biodiversity. Foresters, seeking a reasonable solution to this problem, might consider ALL BUT
A) replanting areas where teak has been already harvested.
B) cultivating teak on farms for harvesting instead of using native trees.
C) growing farm crops in greenhouses instead of on land previously home to teak trees.
D) finding another species to replace teak to some degree to reduce teak harvesting.
Hey guys!
Just wanted to let you know, like the other user commented, C is the correct answer!
A reasonable solution to this problem might consider all but only Growing farm crops in greenhouses instead of on land previously home to teak trees.
What are Teak plants?
The tick plant is called as king of timbers. It grows as a very huge tree and provides excellent quality wood. Its wood is mainly used in making furniture.
Teak is prized hardwood and is used for outdoor furniture. Teak is grown in only a few locations throughout the world and is a native tree becoming scarce due to repeated harvesting.
Logging teak forests disrupts the natural habitat of many other species and it reduces local biodiversity as well. Forests are a reasonable solution to this problem they consider replanting areas where teak has been already harvested.
Cultivating teak on farms for harvesting instead of using native trees, and finding another species to replace teak to some degree to reduce teak harvesting.
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In your own words, explain the role of scientific investigation in the development of the Theory of Adaptation.
Answer:
The scientific investigation is the systematic approach of the scientists to answer the questions about the world. It is applied almost all of the theories including the Theory of Natural Selection. Darwin's theory of evolution is a result of scientific investigation. In this theory, they investigate by observing the distribution of species.
Answer:
The scientific theories can be framed on the basis of scientific evidence as well as their proofs.
To frame any scientific theory one has to follow the scientific procedure to reach the conclusion one of which is an investigation to provide the best evidence to support the theory.
The theory of evolution was proposed by Charles Darwin which stated that organism evolves from ancestors or descent with modifications. In favor of his theory, he presented the remnants of the past organism as well as the collected specimens form his voyage.
Which of the following plant organs is always included in the root system of a plant?
A.
roots
B.
leaves
C.
stem
D.
all of these
Answer: the answer is a
Explanation:
Answer: Option A
Explanation:
The plant organs that is always included in the root system is roots.The root system in the plants consists of the structures that are below the ground.
Such structures are tubers, roots, rhizomes, et cetera. The main function of root system is to supply water, hormones, minerals to the plant and within the plant.
The roots also provide anchorage to the plants by binding tightly to the soil particles.
27. Which of the following might occur as a result of plastic trash accumulating in the ocean?
A. Turtles mistake clear plastic bags for jellyfish and die of intestinal blockage.
B. Sea birds are strangled by plastic six-pack rings.
C. Sea mammals such as seals become entangled in clear plastic fishing lines and drown,
D. All of the above
D all of the above. 90% of the time answer with all of the above will be the answer
Water pollution is the addition of unwanted harmful pollutants in the water bodies and sources. It mainly occurs due to human actions.
The following points can take place due to the accumulation of plastic bags in the ocean:
Sea birds can get strangled.Turtles can mistake them for food which leads to their intestinal blockage and they will eventually die.Sea mammals can get entangled in these plastic bags.The accumulation of these plastic wastes in a water body will aggravate climate crisis and also disrupt the ecosystem of the water bodies.
Therefore, all the above mentioned point are the result if plastic bags are dumped in the ocean.
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HELP ASAP PLZ !!!!!
Answer: The answer I would go with C. It is a well - tested explanation
Explanation:
Because....
It could be the first one as well, but I believe this is a better choice because the paragraph shows the person is testing on child development but it also gives a valid explanation, which is the reason why I say the answer is C.
* Hopefully this helps:) Mark me the brainliest:)!!
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Are genetically modified organisms are used to make medicines as well as agriculture crops
Answer:
Medicines is a high possibility, but agriculture is a yes.
Explanation:
which would be an adaptation for living in the tundra
a. funnel shaped leaves to help water runoff
b. hibernation to lower metabolism in the winter
c. large ears to release heat
Answer:
b. hibernation to lower metabolism in the winter
Explanation:
Tundra, besides the one I live in apparently, are very, very dry because of the cold. This means that it may be helpful to hibernate for the part of the year where it is even too cold for plants and other animals.
Answer: it’s A
Explanation: cus funny
Which process stops when ribsome reaches stop condon
Translation
Explanation: The method of translation practices energy to move the mRNA within the ribosome and to determine the peptide. The ribosome changes along the mRNA and the process repeats. The part of the polypeptide chain development and translation ends when the ribosome stops the stop codon on mRNA.
I apologize if this is not what you meant.
When a ribosome reaches a stop condon during translation, the process that ends is translation termination. This results in the completion of the polypeptide and the disestablishment of the translation complex.
Explanation:The process that stops when a ribosome reaches a stop codon is translation termination. When the ribosome encounters a stop codon (UAA, UAG, or UGA), the production of the protein, or polypeptide, is completed. Release factors trigger the detachment of the amino acid from its tRNA and the newly made protein is released. Subsequently, the small and large ribosomal subunits dissociate from the mRNA and from each other, freeing them up to participate in other translation initiation complexes.
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Which molecule is most responsible for determining an organism eye color body structure and cellular enzymes production
DNA is the molecule that determines an organism's eye color, body structure, and cellular enzyme production. Traits of an organism are determined by specific parts of the DNA called genes. These genes command the construction of specific proteins that determine our physical attributes, produce enzymes for chemical reactions and influence our eye color.
Explanation:The molecule that is primarily responsible for determining an organism's eye color, body structure, and cellular enzyme production is DNA (Deoxyribonucleic Acid). DNA carries the genetic instructions for the development, functioning, and reproduction of living organisms. Its structure is a double helix and is composed of nucleotide base pairs.
The traits (for example, eye color) of an organism are determined by specific regions of DNA, called genes. Each gene provides the instructions required to construct a particular protein. These proteins have various roles within the body, including giving us our physical characteristics, producing enzymes that drive chemical reactions within cells, and determining our eye color.
For instance, in Drosophila, the gene for eye color is located on the X chromosome. Different versions of this gene (alleles) result in different eye colors. Similarly, proteins are responsible for forming the structure of our bodies and producing cellular enzymes that guide metabolic processes within the body.
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how do regulatory proteins of the cell cycle help maintain homeostasis
Answer: They make sure that the body's pH, glucose, and iron are all at their proper levels.
Explanation:
Which part of sunlight makes up the visible spectrum? Check all that apply. blue green indigo infrared ultraviolet
Answer: Blue, green and indigo.
Explanation: The visible spectrum of the electromagnetic radiation includes 7 colors and besides these 7 colors human eye cannot see other colors.
So the blue, green and indigo lies under the visible spectrum. A typical human eye can detect the wavelength from 380 to 740 nanometers.
Before this wavelength and after this wavelength human eye cannot see anything.
The visible spectrum of sunlight includes the colors blue, green, and indigo. Infrared and ultraviolet are part of the wider electromagnetic spectrum, but they are not visible to the human eye. Other species can perceive these ranges that are outside of the human range.
Explanation:The visible spectrum of sunlight includes the colors we can see, namely: blue, green, and indigo. It's important to understand that the visible spectrum is a portion of the larger electromagnetic spectrum. This visible spectrum, perceived by human eyes, is associated with wavelengths that range from 380 to 740 nm. However, the divisions between infrared, visible, and ultraviolet light, as well as those between the seven rainbow colors (red, orange, yellow, green, blue, indigo, violet), are not distinct. In the context of the question, the components of sunlight that make up the visible spectrum are blue, green, and indigo.
On the other hand, infrared light and ultraviolet light are part of the overall electromagnetic spectrum but are not visible to the human eye. Therefore, infrared and ultraviolet do not make up part of the visible spectrum of sunlight that we can see. Species such as honeybees and some snakes can perceive the ultraviolet and infrared ranges, respectively, which are outside of the human range.
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A species of flower lives in an environment
that has always had an abundance of rain but is
now experiencing less rainfall each year. Which
variation within the flower population would be
beneficial in terms of natural selection?
A a difference in pollen production
B a difference in the color of petals
C a difference in the length of the roots
D a difference in the length of the stems
C
A change in root length in terms of increase in length would be beneficial for the plant to continue to absorb a sufficient amount of water from the soil.
The variation within the flower population that would be beneficial in terms of natural selection is a difference in the length of the roots.
What do you mean by Natural Selection?
Natural selection may be defined as the strategy through which populations of living organisms adapt and change. It may lead to favorable variations among organisms.
The length of roots depends on the availability of water in the environment. If there is more amount of water, the length of the root is typically shorter, while if there is a scarcity of water a plant has to expands its roots downwards and absorbs more water.
Therefore, the variation within the flower population that would be beneficial in terms of natural selection is a difference in the length of the roots.
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What are the five steps of genetic expression?
Answer:
1. Transcription – conversion of DNA to RNA
2. Post-transcriptional modifications
3. RNA transport
4. Translation or protein synthesis
5. Protein folding
1 Initiation. The DNA molecule unwinds and separates to form a small open complex. RNA polymerase binds to the promoter of the template strand.
2 Elongation. RNA polymerase moves along the template strand, synthesising an mRNA molecule. In prokaryotes RNA polymerase is a holoenzyme consisting of a number of subunits, including a sigma factor (transcription factor) that recognises the promoter. In eukaryotes there are three RNA polymerases: I, II and III. The process includes a proofreading mechanism.
3 Termination. In prokaryotes there are two ways in which transcription is terminated. In Rho-dependent termination, a protein factor called "Rho" is responsible for disrupting the complex involving the template strand, RNA polymerase and RNA molecule. In Rho-independent termination, a loop forms at the end of the RNA molecule, causing it to detach itself. Termination in eukaryotes is more complicated, involving the addition of additional adenine nucleotides at the 3' of the RNA transcript (a process referred to as polyadenylation).
4 Processing. After transcription the RNA molecule is processed in a number of ways: introns are removed and the exons are spliced together to form a mature mRNA molecule consisting of a single protein-coding sequence. RNA synthesis involves the normal base pairing rules, but the base thymine is replaced with the base uracil.
Why is it true to say that exhaled air is acidic?
Answer:
Because it contains carbonic acid
Explanation:
Carbonic acid is made from dissolving carbon dioxide in water. Since carbon dioxide is exhaled in the lungs, and the exhaled air is moist due to the presence of water molecules from the alveoli, then the carbon dioxide gas will be dissolved in the exhaled air’s moisture rendering it slightly acidic.
A new species of bacteria is discovered that lives deep in the ocean sediments, where no oxygen is present. When scientists bring it to the surface and expose it to air, the bacteria cannot survive. Which phrase would best describe this organism?
Final answer:
The bacteria that cannot survive when brought to the surface and exposed to air can be described as strict anaerobes. They lack cellular defenses against oxidative stress and need anaerobic conditions to survive. In deep ocean sediments, where no oxygen is present, they can thrive.
Explanation:
The bacteria that cannot survive when brought to the surface and exposed to air can be described as strict anaerobes. These bacteria live in environments lacking oxygen and use anaerobic respiration or fermentation to survive. Oxygen can be lethal for them because they lack cellular defenses against oxidative stress. They are able to live deep in the ocean sediments where no oxygen is present, but cannot survive in the presence of oxygen.
What are the genotypes and phenotypes of the parents of Ff and FF?
F = free
f = attached
Make a punnett square.
F F
F FF FF
f Ff Ff
So the genotypes are 50% FF and 50% Ff.
The phenotype is 100% free since Ff is heterozygous and the dominant trait is present.
An atom of calcium has 20 protons. How many electrons does it have ?
In any atom of element, the number of proton is equal to the number of electrons .
Hence atom of calcium having 20 protons also have 20 electrons.
Answer:
In any atom of element, the number of proton is equal to the number of electrons .
Explanation:
The primary minerals of an igneous rock you are examining are quartz, feldspar, and mica. This rock is probably
A) basalt
B) gabbro
C) granite
D) peridotite
40 POINTS PLEASE HELP!!!!
Granite, those black parts I believe are obsidian, a giveaway for granite because it’s a metamorphic rock
Answer:
Granite.
Explanation:
Those black parts are obsidian. That is a giveaway for granite because it’s a metamorphic rock.
Based on cell theory, why is a virus considered non-living? A) A virus does not have a nucleus. B) A virus does not contain genetic material. C) A virus is too small to be considered a cell. D) A virus cannot reproduce itself without a host cell.
answer is D) a virus cannot reproduce itself without a host cell.
A hiker has become overwhelmed with heat while walking in the Grand Canyon. The hiker's body goes into overdrive to keep cool in the heat. The hiker needs to hydrate his or her cells. What process is used to regulate homeostasis?
A. Hydration B. Cellular transport C. Passive transport D. Balanced equilibrium
Answer:
A. Passive transport
Explanation:
Cell transport is the exchange of substances through the plasma membrane
The passive transport allows the molecular passage through the membrane in favor of the gradient of concentration or electrical charge, that is to say that it transports values of greater concentration at lower concentration, as it happens in the osmosis process where a transport of molecules of water mediated by specific proteins in favor of its concentration gradient.
Answer:
Cellular transport
Explanation:
(GOING TO GET SUSPENDED IF I DONT ANSWER QUICKLY)
How are pupae, larvae, and nymphs different
Larva is a bed bug that has not been born yet. Nymph is a baby bed bug they are usually white and get browner as they get older.
A cross of a black chicken (BB) with a white chicken (WW) produces all speckled off spring (BW). This type of inheritance known as
Answer:
Codominance
Explanation:
When we say codominance, both traits of the parents are seen on the offspring. For example in your problem, the offspring is speckled meaning there is a mixture of both white and black, traits coming from each parent.
Do not confuse this with incomplete dominance. Incomplete dominance is similar but the difference is that the traits are "BLENDED". So let's say that if incomplete dominance occurred, the offspring would be gray.
The described inheritance pattern, in which a cross between a black and white chicken produces all speckled offspring, is known as codominance. This pattern of inheritance happens when neither of the two alleles of a gene is dominant or recessive, resulting in offspring that display traits from both parents.
Explanation:The type of inheritance described in the question, where a cross between a black chicken (BB) and a white chicken (WW) produces all speckled offspring (BW), is known as codominance. In codominance, both alleles are equally strong and both are expressed in the offspring's phenotype. In this case, neither the black color (B) nor the white color (W) is dominant over the other, resulting in a speckled combination of both colors (BW).
Bringing in a different context, in cases of codominance in mice, a cross between a black mice (A) and a white mice (a) will produce grey mice (Aa). Many genetic traits indeed follow this pattern of inheritance.
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Provide a specific example of photosynthesis and cellular respiration working together.
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water
Final answer:
Photosynthesis and cellular respiration work together in the carbon cycle, where plants use carbon dioxide and water to produce glucose and oxygen through photosynthesis, and then the glucose is used in cellular respiration to produce ATP along with the release of carbon dioxide and water.
Explanation:
Photosynthesis and cellular respiration are two processes that work together to store and release energy in living organisms. An example of how they work together is through the carbon cycle. During photosynthesis, plants use carbon dioxide and water to produce glucose and oxygen. The glucose produced is then used in cellular respiration to produce ATP, and in the process, carbon dioxide and water are released as byproducts. This cycle ensures the continuous recycling of carbon and the availability of oxygen for organisms.
A____ is a group of 3 nitrogen based on a mRNA molecule that carries the code for a specific amino arid. A____ is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on an mRNA molecule
A codon is a group of 3 nitrogen bases on a mRNA molecule that carries the code for a specific amino arid. An anticodon is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on a mRNA molecule.
A codon is a sequence of three nucleotides on mRNA that represents a specific amino acid, while an anticodon on tRNA matches this sequence. The genetic code is the set of rules dictating how codons are translated into proteins. Codons and anticodons play crucial roles in the protein synthesis process.
Explanation:A codon is a group of 3 nitrogen bases on an mRNA molecule that carries the code for a specific amino acid. Similarly, an anticodon is a set of 3 nitrogen bases on a tRNA molecule that matches a codon on an mRNA molecule. Each codon consists of three nucleotides, usually abbreviated with the letters A, U, G, and C. In the mRNA, uracil (U) is used whereas DNA contains thymine (T). The mRNA molecule instructs a ribosome to synthesize a protein according to the genetic code represented by these codons.
The genetic code is a set of rules by which information encoded in the genetic material (DNA or mRNA sequences) is translated into proteins by living cells. This information is carried by the sequence of codons in mRNA. For example, the codon AUG not only codes for the amino acid methionine but also serves as a start signal for translation. Moreover, there are 64 possible codons, more than the number of amino acids, which allows for some redundancy; several codons can specify the same amino acid. In addition, some codons function as stop signals to end protein synthesis.
Mike always has to adjust the blinds in his office because of the sunlight. What could be a solution to develop a better set of window blinds? A) install a timing mechanism and set it to open or close at a specific time B) install a sensor that monitors the amount of sunlight C) buy better window blinds D) buy darker window blinds
Answer:
B
Explanation:
A sensor, usually photoelectric, that monitors the intensity of sunlight is better because, in case of high intensity, the blinds are automatically closed or almost closed allowing little sunlight to enter through and light up the office. In case of low-intensity sunlight, the blinds automatically open or are more open allowing much of the sunlight from outside. This way Mike does have to keep adjusting his blinds.
Answer:
B
Explanation:
A planet has an orbital period of 3.24 years . What is the average distance of the planet from the sun? A.2.19
Answer:
5.83 AU is the answer to your question
Explanation:
Answer:
2.19 AU
Explanation:
because teacher told me
Which natural forces can weather and erode rock? Check all that apply
Answer: Ice, heat, water and wind
Explanation:
Answer:
2 3 4 5
Explanation:
Please help! I am stuck on this question!
Answer:
Supposing fox, bird, cactus are the answers to choose,
BIRD is definitely your answer!
Hope this helps!!!
[tex]Sofia[/tex]
Answer:
bird
Explanation:
Which statement accurately describes the relationship between chromosomes, DNA & genes?
Question 4 options:
DNA is made of tightly coiled chromosomes and genes.
Chromosomes move freely through the cell in order to locate the DNA and genes.
Genes contain chromosomes and coiled around DNA.
Chromosomes are made of tightly coiled DNA and genes are small sections within the DNA.
Answer:
it's the last option
Explanation:
the last option. Genes make DNA, DNA make chromosomes.
Chromosomes are made of tightly coiled DNA and genes are small sections within the DNA is a relationship between chromosomes, DNA & genes.
What are the types of genes ?Genes are the segment of DNA can be present in chromosome both in prokaryotic and eukaryotic cell, it can be up different types like house keeping gene, luxury gene, structural gene, pseudogene etc.
House Keeping Genes or constitutive genes are express in a continuous manner and they code for proteins which are important to do all cellular activities and continuously needed by the cell.
Non-constitutive Genes or luxury genes are express in a discontinuous manner in a cell and can be Inducible and repressible genes; Structural Genes are protein-coding genes which code only functional proteins.
Pseudogenes are similar to protein-coding genes, but they cannot produce a functional protein due to disintegrated open reading frame (ORF).
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The arrows in the chart above represent the movement of carbon between four reservoirs: the ocean, plants, fossil fuels, and the atmosphere. The numbers in the blue boxes show the gigatons of carbon moving each year. More carbon is moving into the vegetation for photosynthesis than is moving out to the atmosphere via respiration. This means that the vegetation reservoir is a carbon sink, taking in more carbon from the atmosphere than it is releasing to the atmosphere. A carbon source is the opposite. A reservoir that behaves as a carbon source releases more carbon to the atmosphere than it takes in.
Consider the statements listed here. Do they accurately describe potential changes in the model? Choose all that are correct.
Deforestation would result in a decrease in the carbon sink.
Increased use of alternative energy sources such as solar and wind energy would result in a decrease in released or sourced carbon.
If we consider non-industrialized countries, the model would remain the same.
If global warming continues, we would expect a change in the amount of carbon found in the ocean reservoir.
Combustion of fossil fuels acts as a carbon sink.
All carbon in the atmosphere is made by humans.
Which ones is it?
Answer:
got it wrong : <
Explanation:
Deforestation would result in a decrease in the carbon sink.
Increased use of alternative energy sources such as solar and wind energy would result in a decrease in released or sourced carbon.
If global warming continues, we would expect a change in the amount of carbon found in the ocean reservoir.
The following below are correct:
Deforestation would result in a decrease in the carbon sink.Increased use of alternative energy sources such as solar and wind energy would result in a decrease in released or sourced carbon. If global warming continues, we would expect a change in the amount of carbon found in the ocean reservoir.What is Carbon sink?This can be defined as anything that absorbs more carbon from the atmosphere than it release such as plants etc.
Deforestation involves feeling of trees which will cause a decrease in the carbon sink. The use of alternative energy will also lead to a decrease in the use of carbon.
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