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ICSE Class 10 Biology Question 6 of 18

Structure of Chromosomes, Cell Cycle and Cell Division — Question 10

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10
Question

Question 10

The basis of genetic variation in the living organisms during mitosis occurs due to :

  1. Cell division
  2. Mutation
  3. Crossing over
  4. Karyokinesis
Answer

Crossing over

Reason — Crossing over results in change of gene sequence which is responsible for variation.