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When are two populations likely to have very similar allele frequencies?
Wiki User
∙ 7y ago
If there is a large amount of genetic drift :)
Vicki Mendoza
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Are allele frequencies more likely to remain stable in large populations than in small populations?
yes
When a small population separates from a larger population the allele frequencies change between the two populations. Which is event is most likely to occur from such frequent changes?
They will each become more and more different. Especially if their environments also change.They may become separate species.
The allele frequencies of a population are more likely to remain unchange if?
There is no evolution. Random mating, no immigration/emigration, or, in short, Hardy-Weinberg equilibrium holds.
Resource partitioning would be most likely to occur between?
sympatric populations of species with similar ecological niches
Would a change in allele frequencies be more likely to produce microevolution or macroevolution?
Small changes are produced with changing frequency. Alleles are different form of same gene. Hence for macroevolution, large changes are essential.
Would a recessive allele or dominant allele be more common in population?
Dominant allele because its more likely to be received by the next generation.
How does population size affect the likelihood of changes in allele frequencies by chance alone?
Mutation rates are small but constant. With a typical mutation rate of 1 x 10-6, it is expected that 1 out of a million individuals in a population will carry the mutation. If the population size is small (10,000 or fewer individuals), the probability that the mutation will be present is small (~1% with 104 individuals). If population sizes are large (107 or more individuals), the probability that the mutation will be present is large (~10 mutants expected if 107 individuals are in the population). Mutations can be lost from populations through genetic drift, and large populations experience less genetic drift than small populations. Thus mutations are more likely to exist and persist in large populations than in small populations.
When are two populations considered new and separate species?
A new species can occur when;1. Change in allele frequencies-genetic drift can result in loss of alleles in a population-one allele becomes the only variation, becomes "fixed"2. Gene flow due to migration-movement of alleles into or out of a population3. Non-random mating-individuals have preferred mates rather than random4. Mutations-a change in DNA can be beneficial, neutral, or harmful5. Natural Selection-best adapted, more likely to survive
What populations can you think of that would not likely have a normal distribution?
There are many populations that would not likely have a normal distribution. Endangered species or unsocial animals would be such populations.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
Are large populations less likely to survive than small populations are?
false
A biologist measures the allele frequencies of pea plants in a very controlled environment. The plants can either have a dominant tall allele (T) or a recessive short allele (t). Which of the followin?
One pea plant mutates to have a new allele APEX:)
