A typical human cell expresses only about 5% of its genes at any time. The expression of a gene can be regulated during any step in the transition from a gene to a protein. In each step, there is a control point where the gene can be turned on or turned off. The gene expression can direct embryonic development during cellular differentiation in an embryo. The proteins responsible for the regulation are called

The cells of skin are somatic cells undergo mitosis while gametes are germ cells are and undergo meiosis.

Explanation:

The cells of the skin are somatic cells while the gametes are the germ cells which become haploid.

The cells of the skin undergo mitosis for the growth and repair process.

The germ cells or gamete undergo meiosis to produce haploid cells.

The skin cell when undergoes mitosis forms 2 diploid cells and gametes undergoes meiosis to form haploid cell.

The haploid cell on fusing with sperm or ovum becomes diploid by making a zygote.

The number of chromosomes in skin cell or somatic cell have complete set of chromosomes i.e. 46 in human while the cells of gamete will be half the chromosome as 23.

The half information of the individual is present in gamete whereas skin cell have full information.

Answer:

Gametes transfer all genetic information to the next generation, so their DNA is somewhat "protected" from somatic cells

Explanation:

Gametes differ from other cells in the body in several ways: the cells we call as "somatic." Think about what a gamete has to do, what is different from most other cells, and you will begin to discover many cellular differences. For example, gametes must become haploid: they must reduce their genetic material to a single copy, while somatic cells are diploid. Gametes go through a process of gene reduction called meiosis, and only gametes do. Furthermore, gametes transfer all genetic information to the next generation, so their DNA is somewhat "protected" from somatic cells. Furthermore, gametes, especially eggs, can produce a completely new organism. No other somatic cell (that we know of) can do this naturally (although some stem cell research is focused on solving this problem). There are many other differences, but these should help you get started. Again, consider linking function, what cells do, to their shape.

Answer:

The inheritance of ABO blood groups corresponds to an autosomal codominant pattern.

Explanation:

The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

The presence of an antigen A or B, suppresses the expression of blood type O, recessive, which will be possible only in its homozygous form.

Learn more:

Factors responsible for ABO blood type https://brainly.com/question/2645377

Final answer:

ABO blood groups are inherited via a system involving multiple alleles and codominance. The IA and IB alleles are codominant and dominant over the i allele. Offspring of heterozygous type A and type B parents can have any of the four blood types.

Explanation:

Inheritance of ABO Blood Groups:

The ABO blood groups are an example of inheritance that involves multiple alleles and codominance. The alleles IA and IB are responsible for types A and B blood, respectively, and both are dominant over the allele i, which is responsible for type O blood. In cases where an individual inherits one allele for type A (IA) and one allele for type B (IB), they exhibit a phenotype known as type AB blood, in which both antigens are expressed equally on the surface of red blood cells.

For a heterozygous blood type A parent with genotype AO (IAi) and a heterozygous blood type B parent with genotype BO (IBi), there is a possibility their offspring can have any of the four blood types: A, AB, B, or O. This variety is due to the alleles segregating during formation of gametes and then coming together to form the genotype of the offspring.

Answer:

Amoeba: Amoeba moves with the help of pseudopodia. The pseudopodia are known as false feet of the amoeba as they are actually protrusions of the cytoplasm.

Paramecium: Movement in the paramecium is assisted by the cilia, which are hair like projections covering the outer body of the paramecium. The movement of the cilia moves the paramecium body forward or backwards.

Euglena: Movement in Euglena is assisted by structures called flagellum. The flagellum are a thread like structure which causes whipping movement in euglena.

Diatoms: DIatoms have structures called raphe for movement. It allows the diatoms to move over surfaces.

Immigration and birth rate are similar in that they both contribute to the increase of a population's growth rate by adding individuals.

The growth rate of a population is influenced by several factors: births, deaths, immigration, and emigration. When comparing immigration and birth rate, both concepts are similar in that they add individuals to a population. This is represented in calculations of growth rate where immigration and births are factors that are added to quantify an increase in the population size. On the contrary, deaths and emigration are factors that are subtracted as they represent a decrease in the population size. The growth patterns may follow exponential or logistic models, the former describing unfettered growth, while the latter accounts for environmental limitations.

Answer:

The shape of the abnormal red blood cells in sickle cell anemia can affect the efficiency of the circulatory system by obstructing the flow of blood through the arteries.

Explanation:

Red blood cells are the cells responsible for transporting oxygen and carbon dioxide throughout the body, and their spherical shape allows them to pass through blood vessels of any calibre.

A red blood cell in sickle cell disease loses its spherical shape, acquiring a half-moon shape, which can lead to its accumulation inside the arteries and produce a blockage, decreasing the efficiency of the circulatory system.  

The arterial obstruction may lead to a decrease in oxygenation in the sites that are irrigated by that artery.

Learn more:

Sickle cell anemia https://brainly.com/question/900881

Answer:

Because the cells are sickle shaped, their surface area is decreased. These RBCs likely cannot carry oxygen as effectively as regular blood cells. The shape can cause the cells to get stuck in the blood vessels, creating a blockage.

Explanation:

Answer:

mRNA

Explanation:

Messenger RNA produced in the nucleus and go to the cytoplasm. In cytoplasm two other types of RNA ribosomal and transfer RNA present that read the sequence of mRNA and produce protein molecule.

Answer:25.4

Explanation:because i got it correct

To find the angle of refraction when light passes from ethanol to cyclohexane, you use Snell's Law with the given indices of refraction and the angle of incidence. Calculate sin(θ2) and then use the inverse sine function to find the angle of refraction (θ2).

To calculate the angle of refraction of light passing from ethanol into cyclohexane, we can use Snell's Law, which is n1 × sin(θ1) = n2 × sin(θ2), where n1 and n2 are the indices of refraction of the two media, and θ1 and θ2 are the respective angles of incidence and refraction. Given that the index of refraction of ethanol (n1) is 1.37 and that of cyclohexane (n2) is 1.43, and the angle of incidence (θ1) is 26.8°, we can solve for the angle of refraction (θ2).

Applying Snell's Law:

1.37 × sin(26.8°) = 1.43 × sin(θ2)

First, calculate the sine of the angle of incidence and then divide by the index of refraction for cyclohexane to find the sine of the angle of refraction:

sin(θ2) = (1.37 × sin(26.8°)) / 1.43

After calculating sin(θ2), use the inverse sine function to determine the angle θ2, which is the angle of refraction.

Substitute the values into the equation and solve for the angle of refraction (calculations not shown here as they require a calculator).

Sucrose is considered more complex than glucose because it is made up of two different sugar molecules bonded together.

Glucose and sucrose are both carbohydrates, but they have different structures and properties. Glucose is a monosaccharide, which means it consists of a single sugar molecule. Sucrose, on the other hand, is a disaccharide composed of two monosaccharides - glucose and fructose - bonded together. In terms of complexity, sucrose is considered more complex than glucose because it is made up of two different sugar molecules.

The statement 'Genetically modified foods are heartier and healthier' is in favor of genetic modification (Option B).

Genetically modified foods (GMOs) are foods that have been modified by genetic engineering techniques.

These foods (GMOs) raise different concerns regarding the safety of such products for human health.

In conclusion, the statement 'Genetically modified foods are heartier and healthier' is in favor of genetic modification (Option B).

Learn more about genetically modified foods here:

https://brainly.com/question/9779863

#SPJ9

Answer: The killer is C; Karen

Explanation:

After looking at the birdbaths results and Karen's results, you can see that they are the same. This will make Karen the killer. Since the killer washed their hands in the birdbath, the detectives were able to get trace amounts of DNA.

DNA fingerprints are determined by a chemical test. This takes the persons genetic makeup and matches it with other peoples that are in a database. This type of DNA testing can be used in courts, identify bodies, find cures, and also look for missing people.

Answer:

c - karen

Explanation:

i took the test

Answer:

Opposite

Explanation:

If its summer in the northern hemisphere it is winter in the southern.

Because the tilt of Earth's axis always points in the same direction, the seasons in the Northern and Southern Hemispheres are always opposite.

The Earth has a constant axial tilt of 23.5 degrees, with the axis always pointing towards Polaris, the North Star, as it orbits the Sun. When the Northern Hemisphere is tilted towards the Sun during its orbit, it experiences summer, with longer days and shorter nights. Conversely, the Southern Hemisphere, being tilted away from the Sun at the same time, experiences winter, with shorter days and longer nights. This tilt and the Earth's orbit around the Sun lead to the different seasons experienced by each hemisphere throughout the year. Acting out the Earth's revolution around a lamp in a dark room while leaning in the same direction can be a helpful illustration for students to understand this concept.

Answer:

People being scared of becoming inferior .

Explanation:

Once someone has become genectically altered they might have some advantages up on regular humans that don't want to be genetically altered. The unaltered humans would always be scared of being attacked by the altered humans . Its the superhero scenario. In comics you see some humans fear superman because he has the power to kill all of them & that leads to that one guy developing weapons (lex luthor) to try and level the playing field.

Answer:

The energy released when sugar molecules are  broken down is stored in ATP

Explanation:

Answer:

Atp

Explanation:

Answer:

(Choice B) 5 homologous pairs of chromosomes comprising a total of 20 chromatids.

Explanation:

Homologous chromosome are those two chromosomes which have same gene but different in shape and appearance.

Chromatids are the identical copies of chromosome. Single chromosome splits into double number of chromatids. In 5 pairs, 10 chromosomes are present so 10 chromosomes splits into 20 chromatids.

The beginning of meiosis I in female swamp wallabies contains 5 homologous pairs of chromosomes, totaling 20 chromatids.

The correct answer is:

(Choice B) B. 5 homologous pairs of chromosomes comprising a total of 20 chromatids.

In female swamp wallabies, which have a diploid chromosome number of 10 (10 pairs of chromosomes), at the beginning of meiosis I, the germ cells contain homologous pairs of chromosomes. Meiosis I is the first stage of meiosis, where homologous chromosomes pair up and undergo crossing over, resulting in genetic recombination.

Since the swamp wallabies have 10 pairs of chromosomes, this means they have 5 homologous pairs. Each homologous pair consists of two chromosomes (paternal and maternal), and during meiosis I, these homologous pairs align and exchange genetic material. Therefore, each chromosome consists of two chromatids due to DNA replication during interphase before meiosis I begins.

So, at the beginning of meiosis I, a female wallaby germ cell contains 5 homologous pairs of chromosomes, comprising a total of 20 chromatids (2 chromatids per chromosome × 10 chromosomes). This configuration allows for genetic variation and the production of genetically diverse ova, essential for reproductive success and species survival.

Satellite measurements give scientist the best data to study ice loss near the poles. So, the correct option is (A).

Satellite temperature measurements are defined as the temperature of the atmosphere at different altitudes as well as the sea and land surface temperature obtained from radiometric measurements by satellites.

Satellites do not measure temperature directly because they measure radiation in different wavelength bands, which must be mathematically inverted to obtain indirect references to temperature, where the resulting temperature profiles are used to derive temperature from radiation which depend on the details of the methods involved.

Thus, Satellite measurements give scientist the best data to study ice loss near the poles. So, the correct option is (A).

Learn more about Satellite measurement, here:

https://brainly.com/question/13080926

#SPJ3

The correct option is A i.e. Satellite measurements

Satellite measurements, air bubbles trapped in ice, and ice core samples are essential tools for studying ice loss near the poles.

Answer:

Provides new habitats

Explanation:

AP!X STUDENTS

The positive effect of climate change on organisms is that it provides new habitats. The correct option is B.

Climate change can lead to changes in temperature, precipitation patterns, and other environmental conditions.

These changes may lead to the establishment of new habitats or modifications to existing habitats, which may have an influence on many creatures in both good and negative ways. In this instance, the beneficial outcome is the creation of new habitats.

As climate patterns shift, certain regions may become more suitable for certain species or ecosystems.

For example, as temperatures warm in certain areas, species that were previously limited by colder temperatures may be able to expand their ranges or colonize new areas.

This expansion of suitable habitats can provide opportunities for increased biodiversity and ecological resilience.

Thus, the correct option is B.

To know more about Climate change, click here:

https://brainly.com/question/32532670

#SPJ2

Answer:

read patient charts, calibrate microscopes, perform an MRI, repair an EEG machine

Answer:

the answer is c- reading patient charts, calibrate microscopes, perform an mri, repair an eeg machine

Explanation:

just did the unit test review, hope this helps <3

1. Sand particles are too big to dissolve so their density sinks them

2. Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.

Answer:

1) Escalating poaching, or illegal killing, for the commercial trade in ivory and meat.

2) Growing demands of exploding human populations and poverty.

The main threats to African elephant populations are poaching, driven by the high demand for ivory, and habitat loss due to human activities such as deforestation and expansion of agricultural lands.

The two main threats to African elephant populations are poaching and habitat loss. Poaching is a significant threat primarily due to the demand for elephant ivory, especially in Asia. Elephants are often killed to harvest their tusks, which can sell for high prices on the black market. The second major threat is habitat loss, caused largely by human activities such as deforestation and expanding agricultural land use. As the habitat of elephants shrinks, they come into more frequent contact with humans, often leading to conflicts.

https://brainly.com/question/33939815

#SPJ3

Scientific research and space research both contribute significantly to human knowledge and technological advancement. However, scientific research, covering diverse fields, more directly impacts daily lives, including health and environmental sustainability. Space research, while often viewed as abstract, provides unique benefits, including technological applications like GPS, weather prediction, comprehension of our universe, and a backup survival plan for humanity.

Both scientific research and space research have immense importance for our society. Similarities between these two stem from the fact that they both push the boundaries of human knowledge, bring technological advancements, and have potential to radically improve our lives.

However, their usefulness differs in context. For instance, scientific research revolves around various fields such as medicine, physics, chemistry, etc., producing insights which directly affect our everyday lives (such as development of new medicines or sustainable technologies). On the other hand, space research, while sometimes seen as a more abstract application of science, delivers distinctive benefits. It leads to the development of new technologies (GPS, weather prediction, broadcasting) that we commonly use, contributes to our understanding of the universe, and even provides a contingency plan for human survival in case the conditions on earth become unsustainable.

https://brainly.com/question/35899685

#SPJ3

Answer:

sex chromosome is a type of chromosome responsible for the chromosomal determination of the sex of an individual, example whether a female or a male. Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome. This arrangement means that it is the male that determines the sex of the offspring when fertilization occurs.

Answer:

The human disease phenylketonuria has symptoms that include mental problems, chronic skin rashes, and reduced hair and skin pigmentation. Phenylketonuria can be caused by a mutation in a single gene.

Phenlyketonuria is an example of pleiotropy. Based on this, it can be concluded that pleiotropy occurs when a single gene influences multiple traits.

Explanation:

The correct answer is option( A),  a single gene influences multiple traits, exemplified by phenylketonuria where a mutation in the PAH gene leads to various symptoms, showcasing pleiotropy.

Pleiotropy is a genetic concept where a single gene can have multiple effects on an organism's phenotype. This means that one gene can influence several different traits. In the case of phenylketonuria, a mutation in a single gene (the PAH gene, which encodes the enzyme phenylalanine hydroxylase) leads to a variety of symptoms, including mental problems, chronic skin rashes, and reduced hair and skin pigmentation. This illustrates how one gene can have a pleiotropic effect, causing a range of distinct symptoms.

Let's consider the other options to understand why they are incorrect:

B. a trait is influenced by both genes and environment.

C. a trait is not influenced by genes.

D. a single trait is influenced by many genes.

Therefore, the definition that best fits the concept of pleiotropy, as exemplified by phenylketonuria, is that a single gene influences multiple traits."

Answer:

Plants, animals.

They both require/need water, therefore, they both compete for water.

The two biotic factors are the plants and animals which compete for the same abiotic factor like water in a forest ecosystem.

An ecosystem comprises two prime constituents, that is, abiotic factors and biotic factors. The living part of the ecosystem like animals and plants are considered as biotic factors. On the other hand, the non-living components of the ecosystem like water, minerals, and light are considered as abiotic factors.

In the case of forest ecosystem, the prime biotic factors like animals and plants are totally dependent upon the abiotic factors like water for their existence. Both plants and animals require water for their growth and development.

Thus, the two biotic factors in a forest ecosystem are plants and animals, and they compete for the same abiotic factor like water.

Find out more information about biotic and abiotic factors here:

https://brainly.com/question/24374564

Answer:

Specialization

Explanation:

Is is the adaptation of an organ or part to serve a special function or to suit a particular way of life.

"The correct term for this example is "cellular specialization."

Cellular specialization refers to the process by which cells develop specific structures and functions to perform particular tasks within an organism. In this case, muscle cells in the arm are specialized for contraction and movement, while neurons are specialized for conducting nerve impulses. This division of labor among different cell types allows for the efficient functioning of the body's tissues and organs.

Muscle cells contain proteins such as actin and myosin that enable them to contract when stimulated by a nerve impulse. However, they do not have the necessary structures to generate and propagate nerve impulses. Neurons, on the other hand, have specialized cellular components like axons and dendrites that are designed to transmit electrical signals throughout the body. The neurons' ability to conduct nerve impulses is crucial for coordinating muscle movement, as well as for all other nervous system functions.

In summary, the fact that muscle cells cannot conduct nerve impulses and rely on neurons to do so is a clear example of how different cells within a multicellular organism have distinct roles, a concept known as cellular specialization."

Answer:

The answer is D. Any bipedal primate

Explanation:

Hominids are also known as Great Apes, which are part of the Primate order. All Hominids have the ability to walk upright, which is known is bipedalism. Therefore, hominids are organisms that are bipedal primates.

Answer:

It's A.

Explanation:

They hold a large amount of heat energy

Answer:

A.

They hold a large amount of heat energy.

Explanation:

Oceans are of magnificent at taking up heat generated from m the sun and keeping it. If the Oceans were poor at it, the heat would be confined as a result of the greenhouse activity impact and it results to certain changes in the climate such as making it extremely hot. Through this process, oceans take in massive proportion of heat and successfully decreases the total temperature of the world.

Answer:

Organism tend to adapt and evolve through natural selection.

Explanation:

Natural Selection can be described as a phenomenon by which those organisms are favored and selected by nature which are better adapted to live in an environment. These organism are able to reproduce and pass on their favorable traits to their offspring. Through natural selection, evolution occurs with the passage of time as those traits which are more suited to the ecosystem start existing in organisms.

Final answer:

Organisms adapt and evolve through the process of evolution. Evolution involves mutations that produce new traits, which are then acted upon by natural selection, allowing well-adapted traits to become prevalent in a population. Multicellular organizations such as eukaryotes evolved cells with specialized functions, leading to increased complexity and adaptability.

Explanation:

Organisms adapt and evolve through the process of evolution, which is characterized by gradual change in a population over time. This can lead to the emergence of new species from older ancestral species.

Mutations are random changes in an organism’s hereditary material that can result in new traits. Some mutations can enhance an organism’s ability to survive and reproduce in a particular environment. Natural selection, or 'survival of the fittest,' then acts on these traits. Organisms that are better adapted to their environment tend to survive and produce more offspring, spreading the advantageous traits through the population.

As multicellular organisms, such as eukaryotes, became more complex, they developed the ability to specialize their cells and organize them into tissues, organs, and systems. This specialization and organization allow for greater efficiency and the ability to maintain homeostasis. Over time, this complexity has enabled organisms to inhabit a wide variety of habitats on Earth.

Answer:

i need points sorry

Explanation:

Answer:

Thomas is studying the daily electric power used by his town. He has summarized the power consumption of his town over the course of an average day in the which of the following inferences could Thomas make?

Thomas could simply infer the total amount of electric power consumed averagely in a day for his home town which might be multiplied to get a total for a week, month or entire year

Explanation: