Question

Long whiskers are dominant, short

whiskers are recessive. In a cross between a homozygous dominant papa seal with a homozygous recessive mama seal, what percentage of the offspring would be expected to have long whiskers?

Answer 1

All offspring of the cross between a homozygous dominant papa seal and a homozygous recessive mama seal will have long whiskers, as long whiskers are a dominant trait and they will all be heterozygous.

Step-by-step explanation:

In a cross between a homozygous dominant papa seal with long whiskers and a homozygous recessive mama seal with short whiskers, all offspring would be expected to have long whiskers. This is because long whiskers are the dominant trait. Since the papa seal is homozygous dominant (WW), and the mama seal is homozygous recessive (ww), all of their offspring would receive one 'W' allele and one 'w' allele, making them all heterozygous (Ww) but expressing the dominant characteristic of long whiskers. Therefore, 100% of the offspring would be expected to have long whiskers.