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MHT CET Medical202621 April 2026Morning ShiftBiologyPrinciples of Inheritance and VariationActual

In a monohybrid cross between pure tall pea plant with pure dwarf pea plant, how many types of genotypes are found in the F₂ generation ?

Options

  1. A4
  2. B3
  3. C8
  4. D9

Correct answer

B. 3

Step-by-step solution

A pure tall pea plant has the genotype TT and a pure dwarf pea plant has the genotype tt . The cross between them ( TT tt ) produces F₁ offspring with the genotype Tt (heterozygous tall). Selfing the F₁ generation ( Tt Tt ) yields the F₂ generation. The genotypes produced in the F₂ generation are TT , Tt , and tt . Thus, there are 3 types of genotypes found in the F₂ generation. Answer: 3

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