increased genetic variation a population that is adapted to its current environment a population that is adapted to its current environment In The Origin of Species, Darwin argued that the mechanism of descent with modification was ________. natural selection uniformitarianism artificial selection inheritance of acquired characteristics
Genetic drift is a change in frequency of an allele, so it changes th variability, but does not decrease it necessarily, can also increase it. the correct answer is bottleneck: it decreases the variability to only the genes that "fitted in the bottleneck".
founder effect gene flow natural selection natural selection The evolution of populations due to chance is genetic drift. gene flow. natural selection. genetic variation. has more effect in large populations than in small populations.
genetic drift founder effect gene flow natural selection natural selection The evolution of populations due to chance is genetic drift. gene flow. natural selection. genetic variation. has more effect in large populations than in small populations.
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.
Genetic variation is the diversity present in the DNA of a population. Increased variation provides phenotypic changes that can be selected for or against by natural selection. Increased genetic variation also provides an advantage in adapting to changing environments.
Genetic diversity is important because it gives species a better chance of survival. However, genetic diversity can be lost when populations get smaller and isolated, which decreases a species' ability to adapt and survive.
Mutations increase variety in a population. The process of mutation constantly introduces new alleles into a population. Most mutations are negative, not positive, but natural selection would favor a population that included some mutation in DNA, because mutation increases genetic variety in a population.
Genetic variation is caused by: mutation. random mating between organisms.
A person's skin color, hair color, dimples, freckles, and blood type are all examples of genetic variations that can occur in a human population. Examples of genetic variation in plants include the modified leaves of carnivorous plants and the development of flowers that resemble insects to lure plant pollinators.
Inbreeding, genetic drift, restricted gene flow, and small population size all contribute to a reduction in genetic diversity. Fragmented and threatened populations are typically exposed to these conditions, which is likely to increase their risk of extinction (Saccheri et al.
Loss of genetic diversity increases the risk of extinction of a population through inbreeding depression. In addition, the number of deleterious genetic variations, which might accumulate in a small population through genetic drift, can also make the population vulnerable.
Both inbreeding and drift reduce genetic diversity, which has been associated with an increased risk of population extinction, reduced population growth rate, reduced potential for response to environmental change, and decreased disease resistance, which impacts the ability of released individuals to survive and ...
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.
Answer and Explanation: Answer: Mitosis. A single cell splits during the mitosis stage to give rise to similar cells known as daughter cells. Mitosis fails to increase genetic variation since its results are identical cells, while genetic variation involves differentiated DNA combinations of genes.
Continuous variationheight.arm span.weight.
Genetic variation is the difference in DNA sequences between individuals within a population. Variation occurs in germ cells i.e. sperm and egg, and also in somatic (all other) cells.
variation. A genetic difference among members of the same species that may enable individuals to better survive and reproduce. mutation. a change in an organism's genetic material. natural selection.
Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population.
Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.
1. Which of the following microevolutionary forces is most likely to decrease genetic variation within a population? Select all that apply
1. Genetic drift Explanation All others lead to more genetic variations as compared to genetic drift 2. All of them - Genetic drift / Gene flow / Natural selection Explantion All of them lead view the full answer
A. Genetic variation is the term used to describe differences in the DNA sequences of people. These differences can either be enhanced or reduced, based on specific factors. One factor that is most likely to decrease genetic variation is stabilizing selection.
Stabilizing selection will make sure that only the desired traits are retained. This is achieved when the organisms are exposed to conditioning factors that ensure the dominance of said traits. Biology. 2 weeks ago.
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