Question

Mutations are errors in DNA that:

A.

Always harmful

B.

Increase tumor growth

C.

Occur spontaneously at a low rate

D.

Only occur on the X chromosome

Correct option is C


Mutations are spontaneous changes in the DNA sequence. They generally occur at a low but natural rate and can be neutral, harmful, or beneficial. While some can contribute to diseases, most do not have harmful effects and occur in all chromosomes, not just the X.

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