A) point mutation
B) chromosomal aberration
C) sexual reproduction
D) gene duplication and divergence
Correct Answer: A
Solution :
The point mutations involves the alteration in the structure of gene by altering the structure of DNA. In a point mutation, there is a change in the normal base sequencing of a DNA molecule. This change results to a modification in structural characteristics or enzymatic capabilities of an individual. Point mutation is the major cause of evolution of genes and protein.
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