1. Explain three reasons why a mutation in a single allele mightbe difficult to detect in a population.
2. Why is natural selection the most likely evolutionarymechanism to lead to adaptation? Can any other evolutionarymechanism lead to adaptation? Be sure to elaborate on youranswers.
3. In a hypothetical population of 100 frogs there exists a genewith two alleles, D and d. 28 of the frogs are homozygous dominant(DD), and 22 are homozygous recessive (dd). What is the frequencyof heterozygotes in the population? What are the allelefrequencies? How would the allele frequencies be different in thenext generation if no homozygous individuals were able toreproduce?
