In a sample of onion root-tip cells, are in mitosis. What is the mitotic index?

Answer and explanation

Correct answer: C.

  1. Step 1: Mitotic index .
  2. Step 2: .
Answer
.
Why not the others: : loses a factor of ten in the division. : divides the total by the number in mitosis. : gives the fraction not in mitosis.

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