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NEET2023ZoologyPrinciples of Inheritance and VariationActual

A heterozygous pea plant with violet flowers was crossed with a homozygous pea plant with white flowers. Violet is dominant over white. Which one of the following represents the expected combinations among 40 progenies formed?

Options

  1. AAll 40 produced violet flowers
  2. BAll 40 produced white flowers
  3. C30 produced violet and 10 produced white flowers
  4. D20 produced violet and 20 produced white flowers

Correct answer

D. 20 produced violet and 20 produced white flowers

Step-by-step solution

Genotype of heterozygous violet flower is V Genotype of homozygous white flower is v v Both white and violet flowers will be produced in equal proportion (20: 20) Out of 40 progenies The expected ratio of violet and white flower plant is 1: 1 .

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