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  9. Q101

RRB Group D (Level-1 posts) 2025 · Question 101 of 386

Why does the amount of DNA NOT keep doubling during sexual reproduction in animals?

  1. ABecause both gametes get halved after fertilisation to form the zygote
  2. BBecause both gametes get doubled before fertilisation to form the zygote
  3. CBecause both gametes get halved before fertilisation to form the zygoteCorrect
  4. DBecause both gametes get doubled after fertilisation to form the zygote

Answer: C. Because both gametes get halved before fertilisation to form the zygote

Official answer key verified. Detailed explanation coming soon.

Source: RRB Group D 2024 Question Paper PDF (Dec 21, 2025) (Shift 2) · official-answer-key

← Q100View full paper (386 questions)Q102 →

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