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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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The genotypes of a plant variety were TtHh, Tthh, ttHh and tthh, where T = tallness and H = hairy stem. Which one of the following crosses would produce progeny giving a phenotypic ratio approximately

1: 1: 1: 1

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Correct option: D

TtHh

\times

tthh

Option D (TtHh

\times

tthh) is correct because this cross represents a dihybrid test cross, which typically results in a 1:1:1:1 phenotypic ratio.

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