Question

Question1 2 pts A population of ferrets with a neutral allele F governing coat color. F shows incomplete dominance such that FF ferrets are black, Ff ferrets are grey, and ff ferrets are white. They migrate from the mainland, where the F allele is at an abundance of 50%, to three islands. These islands differ in size one small, one medium-sized, and one large. The larger islands can support more ferrets. A stable population of 50 ferrets lives on the small island, 500 on the medium sized island, and 5000 on the large island. Assuming that coat color has no effect on natural selection in these ferrets, which island is likely to have the highest proportion of grey ferrets (i.e. Ff heterozygotes) after several generations? Large Island We can't say because genetic drift is random Medium Island Small Island Question 2 2 pts You are studying an allele H that governs resistance to tapeworm parasites in a large population of grizzly bears. You observe that different combinations of H and h produce phenotypes that have different fitnesses due to differences in parasite resistance. HH bears have the lowest resistance to tapeworms, and relative fitness of 0.06 Hh and hh grizzly bears have greater resistance to tapeworms. The relative fitness of Hh and hh bears is 0.47 The H allele starts at a frequency of 0.21 Assuming Hardy-Weinberg equilibrium except for differences in selection, what will be the frequency of H be in the next generation?

Answer 1

Ans 1) Large Island

Ff are heterozygote which are grey in color and they have originally migrated from mainland where the F allele is at abundance of 50% to three of the Islands. The large island is found to have the most stable and maximum population of the ferrets and if there is no effect of natural selection, the likely island that would have the maximum heterozygote population is the large island. This is because it follows the Hardy Weinbery which states that the frequency of allele remains constant from one generation to another when it comes to a large population size. Since there is no effect on natural selection of the ferrets, the population remains steady which can only be disturbed in case of genetic mutation, migration or certain natural selection event.