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24 June, 23:54

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. 25 June, 00:12
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    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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