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Question: Answered & Verified by Expert
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?
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A TtHh × TtHh
  • B TtHh × Tthh
  • C TtHh × ttHh
  • D TtHh × tthh
Solution:
1564 Upvotes Verified Answer
The correct answer is: TtHh × tthh
This is a dihybrid test cross which produces the ratio of 1 : 1 : 1 : 1.

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