Hey. The first sound is the "lub." This is what you hear once the mitral and tricuspid valves of the heart close, which are the valves between the atria and the ventricles! Super cool. It is your third answer choice.

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A rare genetic disease which is due to a recessive allele (a) and that is lethal when homozygous, occurs within a specific popul

valkas [14]

Answer:

40 individuals

Explanation:

The homozygous recessive percentage is equal to q2.

Recessive genotype frequency, q 2 is 1/1000000 = 0.000001

therefore, q = $\sqrt{q2}$ = $\sqrt{0.000001 }$ = 0.001 = allele "a" frequency

and p + q = 1, thus, p = 1 – q = 1 – 0.001 = 0.999

thus, the frequency of allele a = q = 0.001 and the frequency of allele A = p = 0.999

Carriers are heterozygous and are equal to 2pq.

So, 2pq = 2 x 0.999 x 0.001 x 20,000 = 39.96 (round of to 40)

Hence, 40 individuals will be expected to carry the recessive allele.

5 0

3 years ago