Genetic variations are the raw material for evolution. these variations cannot be acted on by natural selection factors unless they?

1) produce only unfavorable characteristics

2) produce only favorable characteristics

3) are found in the fossil records of a population

4) are in the phenotype of the organim

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24 August, 02:54

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Maddison Gentry · Answer 1

I am pretty sure it's 4: Are in the phenotype of the organism