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Question 10001
NEET Biology · Hard

Cell Cycle and Cell Division: DNA Amount Trap MCQ

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DNA Amount TrapHardQuestion 10001

Question

A cell has 2n chromosomes in G1. After S phase but before mitosis, the correct statement is:

  1. A
    Chromosome number remains 2n but DNA amount doubles
    Correct
  2. B
    Chromosome number becomes 4n immediately
  3. C
    Chromosome number becomes n
  4. D
    DNA amount becomes zero

Correct answer

Chromosome number remains 2n but DNA amount doubles

Explanation

Replication forms sister chromatids but does not increase chromosome number until chromatids separate.

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