Question

. Stickleback fish are collected from a lake in Alaska. 600 from the sample are spineless, which is a recessive trait in the fish. 80 of the fish collected have spines. Calculate:

A. The frequency of recessive alleles in the population (p):

B. The frequency of dominant alleles in the population (q):

C. The percentage of individuals in the population that are heterozygous:

D. Provide an explanation for why so many fish in the lack display the recessive trait:

Answer 1

Dear Student answer of your question is given below:

We apply hardy Weinberg equation to find out the frequency of recessive and dominant alleles.

Here we see that recessive trait is more in number than dominat trait this is because spineless fishes have advantage of losing pelvic which ultimately keep them safe from predators as large spines help predtaors to catch them easily.

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