A heterozygous pea plant with violet flowers was crossed with a homozygous pea plant with white flowers.…

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?
  1. All 40 produced violet flowers
  2. All 40 produced white flowers
  3. 30 produced violet and 10 produced white flowers
  4. 20 produced violet and 20 produced white flowers

Solution

Genotype of heterozygous violet flower is $\mathrm{V}$ 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 $1: 1$.

Asked in: NEET 2023 (Manipur)

Practice more Principles of Inheritance and Variation questions on Aicharya