Question

Gray hair in voles (H) is dominant to brown hair (h). Short claws (C) are dominant to long claws (c). What is the probability that the offspring of the cross HhCc × HhCc will have gray hair and long claws?

Answer 1

Answer:

$18.75$%

Explanation:

Given the two parents are

HhCc

HhCc

Gray hair in voles (H) is dominant to brown hair (h).

Short claws (C) are dominant to long claws (c)

The allele for HhCc would be - HC, Hc, hC, hc

The punnet square representing the cross between HhCc × HhCc is as below-

HC          Hc         hC         hc

HC HHCC HHCc HhCC HhCc

Hc HHCc HHcc HhCc Hhcc

hC HhCC HhCc hhCC hhCc

hc HhCc Hhcc hhCc hhcc

Genotype for grey hair will be HH or Hh

Genotype for long claws will be cc

Thus out of 16 offspring genotype for both gray hair and long claws are -

HHcc, Hhcc, Hhcc,

Thus, probability that the offspring of the cross HhCc × HhCc will have gray hair and long claws

$\frac{3}{16} * 100\\18.75$5