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27 September, 22:58

What is the ultimate source of genetic variability?

A. Gene flow

B. Mutations

C. Genetic drift

D. Non-random mating

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Answers (1)
  1. 28 September, 02:29
    0
    b. mutations

    Explanation:

    Mutations can alter single nucleotides or entire chromosomes, and they are the sole source of new alleles. The ultimate source of genetic variation is mutation - changes in nucleotide sequences in the DNA.
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