Question

why chromosomal mutation gene mutation in only some people's ​

Answer 1

Answer:

Researchers discovered that normal, healthy people are walking around with a surprisingly large number of mutations in their genes. It's been well known that everyone has flaws in their DNA, though, for the most part, the defects are harmless.

Answer 2

Answer:

Within a population, each individual mutation is extremely rare when it first occurs; often there is just one copy of it in the gene pool of an entire species. Some of these mutations are so harmful that they're eliminated before their carriers are even born.

Explanation:

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