Which environmental factor would likely lead to increase in genetic variation in a population of squirrels?

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Which environmental factor would likely lead to increase in genetic variation in a population of squirrels?

Gauthmathier0180

Grade 9 · 2021-07-21

Answer

The environmental factor that would likely lead to an increase in genetic variation in a population of squirrels is an increase in available food for the squirrel.

An increase in available food  for the squirrel would be more at survival rates, increasing population growth and variety, the other factors would mainly decrease the population rapidly.

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The Elements of Life

In biology, the elements of life are the essential building blocks that make up living things. They are carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. The first four of these are the most important, as they are used to construct the molecules that are necessary to make up living cells. These elements form the basic building blocks of the major macromolecules of life, including carbohydrates, lipids, nucleic acids and proteins. Carbon is an important element for all living organisms, as it is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. Even the cell membranes are made of proteins. Carbon is also used to construct the energy-rich molecules adenosine triphosphate (ATP) and guanosine triphosphate (GTP). Hydrogen is used to construct the molecules water and organic compounds with carbon. Hydrogen is also used to construct ATP and GTP. Nitrogen is used to construct the basic building blocks of life, such as amino acids, nucleic acids, and proteins. It is also used to construct ATP and GTP. Oxygen is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids. It is also used to construct ATP and GTP. Phosphorus is used to construct the basic building blocks of life, such as carbohydrates, lipids, and nucleic acids.

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).

Which of the following are all factors that would increase genetic variation in a population?

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).

Which of the following would most likely increase genetic variation in a gene pool?

Gene duplication, mutation, or other processes can produce new genes and alleles and increase genetic variation. New genetic variation can be created within generations in a population, so a population with rapid reproduction rates will probably have high genetic variation.

What could influence natural selection?

Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

What are the 3 types of genetic variation?

For a given population, there are three sources of variation: mutation, recombination, and immigration of genes.

Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.

What are examples of genetic variation?

Genetic variation results in different forms, or alleles?, of genes. For example, if we look at eye colour, people with blue eyes have one allele of the gene for eye colour, whereas people with brown eyes will have a different allele of the gene.

Which is more likely to result in an increase of variation among organisms?

Sexual reproduction can increase genetic variation but reduce species diversity. … Melian, “is that if sex increases genetic variation and speeds up evolution, then ecosystems will have a higher number of species that reproduce sexually.

How does population size affect genetic drift?

Small populations tend to lose genetic diversity more quickly than large populations due to stochastic sampling error (i.e., genetic drift). This is because some versions of a gene can be lost due to random chance, and this is more likely to occur when populations are small.

How does natural selection affect humans?

Probably more than you might think, a new study suggests. Natural selection is still influencing the evolution of a wide variety of human traits, from when people start having children to their body mass index, reports a study published Monday in the journal Proceedings of the National Academy of Sciences.

Is natural selection and survival of the fittest the same?

Evolution and “survival of the fittest” are not the same thing. Evolution refers to the cumulative changes in a population or species through time. “Survival of the fittest” is a popular term that refers to the process of natural selection, a mechanism that drives evolutionary change.

How do you explain natural selection?

Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.

What are 2 main sources of genetic variation?

Natural selection acts upon two major sources of genetic variation: mutations and recombination of genes through sexual reproduction.

How do you determine genetic variation?

Genetic variation can also be identified by examining variation at the level of enzymes using the process of protein electrophoresis. Polymorphic genes have more than one allele at each locus.

What is random genetic variation?

Genetic drift describes random fluctuations in the numbers of gene variants in a population. Genetic drift takes place when the occurrence of variant forms of a gene, called alleles, increases and decreases by chance over time. These variations in the presence of alleles are measured as changes in allele frequencies.

What decreases genetic variation?

Two forces affecting genetic variation are genetic drift (which decreases genetic variation within but increases genetic differentiation among local populations) and gene flow (which increases variation within but decreases differentiation among local populations).

What factors affect genetic variation?

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Which of the following could increase genetic variation?

And so the answer choices we have are crossing over natural selection, mutation, or immigration. And crossing over increases genetic variation because it increases the diversity of the wheels and therefore genotype and phenotype in a population.

What environmental factor could influence natural selection and increase genetic diversity?

Environmental factors such as soil nutrients, temperature, water availability and light intensity influence the genetic and chemical diversity of plant populations. These environmental conditions can exert strong selection pressures, they could even determine the evolutionary course of plant populations [3,4].

Which is the most likely explanation for the change the beetle population?

Which is the most likely explanation for the change? The beetle population moved to a greener habitat.