What is the expected outcome of crossing two tomato plants that are heterozygous for hairy stems

Expected outcome: HH, Hh, Hh, and hh

The phenotypic ratio of the offsprings will be 3 hairy stems : 1 hairless stem

Explanation:

This question involves a single gene coding for possession of hair on stems or not in tomato plants. The allele for hairy stem (H) is dominant over the allele for a hairless stem (h).

According to this question, if two tomato plants that are heterozygous for hairy stems (Hh) are crossed, the following gametes will be produced by each parent: H and h. Using these gametes in a punnet square, the following proportion of offsprings will be produced:

HH, Hh, Hh, and hh

3 hairy stems (HH, Hh, Hh) : 1 hairless stem (hh).

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