Question

Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two heterozygous individuals with polka-dot tails mate, what's the probability of the phenotype and genotype combinations of the offspring?

Answer 1

P- polka-dot tail
p- solid colored tail

heterozygous- Pp and Pp

      P    p
P  PP  Pp
p  Pp   pp

phenotype- 3/4 will have polkadot tail, 1/4 will have solid colored tail.
genotype- 1/4 PP, 2/4 Pp, 1/4 pp