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4 votes
4 votes
Darren is a world-class runner, and he recently learned that he has a mutation in the gene controlling his fast-twitch muscles. This helps explain his high

level of ability.

This is an example of what kind of mutation?

A harmful
B helpful
C neutral
D environmental

User Kcsurapaneni
by
3.0k points

1 Answer

20 votes
20 votes
B) helpful is the correct answer
User Dave Roma
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3.0k points