Question

multiple choice question
which type of chromosomal mutation facilitates the evolution of gene families?
reciprocal translocation
duplication
deletion
inversion
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Explanation:

Gene families are groups of related genes. Duplication creates extra copies of a gene. These extra copies can then mutate and evolve independently, leading to the formation of gene families. Reciprocal translocation (exchange of chromosome segments), deletion (loss of a chromosome segment), and inversion (reversal of a chromosome segment) do not directly create the extra genetic material needed for gene family evolution like duplication does.

Answer:

Duplication