In pea plants, the allele for inflated pod seed, I, is dominant over the allele for constricted pod seed, i. The Punnett square shows a cross for this trait. Which offspring will be homozygous dominant?

The offspring which carries the allele II will be homozygous dominant.

Explanation:

A dominant trait can be described as a trait which masks the effect of a recessive trait. A recessive trait can be described as a trait which gets masked by the dominant trait.

A homozygous dominant trait occurs when both the alleles for the gen are dominant. A heterozygous dominant trait occurs when one allele is dominant and the other is recessive for the trait.

Hence, a homozygous dominant trait will carry the alleles II.