What stops a new chromosome variant appearing as a unique mutation from increasing in frequency?

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Question:
What stops a new chromosome variant appearing as a unique mutation from increasing in frequency?

1.It is because polyploidy is a rare process

2.it will interbreed with majority form causing heterozygotes to be inferior

3.allopatric speciation does not necessitate reinforcement

4.all of these

Posted Date:-2021-02-22 09:30:59

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