Question

In raccoons, a dark face mask is dominant over a bleached face mask. Several crosses were made between raccoons that were homozygous for a dark face mask and that were homozygous or bleached face mask. What percentage of the offspring would be expected to have a dark face mask?

• A. $0\%$
• B. $50\%$
• C. $75\%$
• D. $100\%$

Answer 1

The correct option is D $100\%$

• As the parental generations are homozygous dominant and homozygous recessive respectively, the F1 generation will be all heterozygous dominant in nature.
• The dominant allele will be able to express its feature even in the presence of the recessive allele in a heterozygous organism. So, all the offsprings will have a dark face and none of them will have a bleached face.

So, the correct option will be '100%'.