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The forward mutation rate from allele ZA to allele ZB is 0.00001 and the reverse mutation rate...

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Biology

The forwardmutation rate from allele ZA to allele ZB is0.00001 and the reverse mutation rate is 0.0000001.

Which of thefollowing may be true for a population in which the frequency ofallele ZB is 67%?

Select one:


(i) Mutation equilibrium between ZA and ZBhas not been reached


(ii) The frequency of ZA is higher than expected atmutation equilibrium


(iii) The frequency of ZB is higher than expected atmutation equilibrium


Both (i) and (iii)


Both (i) and (ii)

Answer & Explanation Solved by verified expert
3.8 Ratings (641 Votes)
Correct answer is Both i and iii Explanation with Calculation Let the forward mutation rate of ZA to ZB be X 000001 or 1 x 105 Let the backward mutation rate of ZB to ZA be Y 00000001 or 1 x 107 The frequency of allele ZB p initially is 067 or 067 According to HardyWeinberg equilibrium we know that the sum of allelic frequency of dominant and recessive alleles is always 1 So allelic frequency of ZA q    See Answer
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