Question

In sheep, white wool is dominant over spotted wool. If 10 purebred white wool sheep (TT) are crossed

with 10 spotted wool sheep (tt), how many offspring will have spotted wool?
05
O 10
ОО
04

Answer 1

0

Step-by-step explanation:

This question involves a single gene coding for wool color in sheeps. The allele for white wool (TT) is dominant over the allele for spotted wool (tt). This means that a sheep with an heterozygous genotype (Tt) will be white-wooled.

In this cross, 10 purebred white wool sheep (TT) are crossed with 10 spotted wool sheep (tt). This will give rise to all offsprings with heterozygous genotype: Tt (see attached image for punnet square). Since, white wool (T) is dominant, all the offsprings will have a white wool and none i.e. 0 will have a spotted wool.