List I (Component)

List II (Description)

A. Recurrent Parent

2. Maintains background genotype

B. Donor Parent

1. Source of target gene

C. F₁ Generation

3. Hybrid between donor and recurrent parent

D. BC₁F₁

4. First backcross generation

Correct Answer: A–2, B–1, C–3, D–4

Explanation:

  • Recurrent parent: The parent whose desirable genetic background is to be retained.
  • Donor parent: Provides the target gene or trait.
  • F₁ generation: The hybrid produced by crossing the donor and recurrent parents.
  • BC₁F₁: The first backcross generation, produced by crossing the F₁ with the recurrent parent.