If 6% of a population is homozygous recessive for a mutation, what is the frequency of...

Question

Question

If 6% of a population is homozygous recessive for a mutation, what is the frequency of this mutated allele (1 mark)? Show your working out.

science biology

Answer 1

Answer #1

According to Hardy-Weinberg equilibrium, homozygous recessive frequency is given by q² which is given as 6% or 0.06

Here, q is the allelic frequency for the recessive allele.

therefore, q = 0.06^(1/2)

or q = 0.2449

or q = 0.25 (answer)

[Additionally, frequency of normal (wild-type, dominant) allele can also be calculated as p = 1 - 0.25 = 0.75]

Answer 2

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