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liberstina [14]
2 years ago
14

Which of the following increases genetic variation by forming entirely new alleles?

Biology
1 answer:
kicyunya [14]2 years ago
4 0

Answer:

Mutation causes brand new alleles the others just modify the rates at which preexisting alleles appear in the population.

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In second marriages, couples are older and tend to be _________.
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correct option is a.  more realistic

Explanation:

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and in second marriage

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so as they age, they have gained experience from their past life

so we can say that in second marriages old couples tend to be more realistic

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