Question

This Punnett square shows a cross between two organisms that are heterozygous for a particularfur color.Parent 1WwParent 2Www = whiteW = blackBased on this cross, what percentage of the offspring are likely to show the recessive phenotype?A. O percentB. 25 percentC. 50 percentD. 100 percent

Answer 1

The answer is B. 25%

If both of the parents are heterozygous in fur color, then their genotypes are:

Ww, Ww

If we cross multiply these genotypes the resulting offsprings would be:

WW, Ww, Ww, ww

Whereas:

WW- 25% homozygous dominant

Ww- 50% heterozygous dominant

ww- 25% homozygous recessive