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Biology · CELL CYCLE AND CELL DIVISION

हिन्दी

If an onion root tip cell possesses 16 chromosomes in G₁ phase, how many chromosomes and how many chromatids will be present in this cell during Metaphase of mitosis?

  1. 16 chromosomes and 32 chromatids
  2. 32 chromosomes and 32 chromatids
  3. 16 chromosomes and 16 chromatids
  4. 32 chromosomes and 64 chromatids

Correct answer · Option 1

16 chromosomes and 32 chromatids

Explanation

The chromosome number remains 16 throughout metaphase, but each chromosome is made of two sister chromatids, yielding \( 16 \times 2 = 32 \) chromatids.
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