Question

Which alleles are on the outside of a Punnett square?

A. parents
B. only the female parent
C. offspring
D. old generation

Answer 1

The alleles on the outside of a Punnett square are the parents' alleles. Crossing the parents' alleles shows the possible genotype for their offspring.

Answer:
A. parents

I've attached a diagram of a Punnett square illustrating the crossing of two heterozygous individuals' alleles.