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How many chromatids are present in a human cell at metaphase of mitosis?

  • A.92
  • B.46
  • C.23
  • D.184

Answer: A

Each of the 46 chromosomes consists of two sister chromatids at this stage, giving 92. Counting chromosomes and counting chromatids gives different answers, which is a frequent source of confusion. The DNA content is doubled even though the chromosome count is not.

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