The Punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. In this cross, tallness (H) is dominant to shortness (h).

Question

The Punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. In this cross, tallness (H) is dominant to shortness (h).

A Punnett square is shown. The columns are labeled Upper D and Upper H. The rows are labeled h and h. Clockwise from upper left the boxes contain: Upper H h, Upper H h, Upper H h, Upper H h.

Based on the Punnett square, what is the phenotype of the offspring?
Hh
HH
tall
short

Answer 1

The phenotype of the offspring predicted by the Punnett square is tall. The genotype Hh represents a heterozygous individual, which means they have one dominant allele for tallness (H) and one recessive allele for shortness (h). Tallness (H) is dominant, so even with one dominant allele, the individual would display the dominant trait of being tall.