Question

Why are mutation and recombination the only processes that can increase genetic variation?

They are the only processes that can produce new alleles.

They are the only processes that change allele frequency.

They are the only processes that cannot be influenced by artificial selection.

They are the only processes that are not random.

They are the only processes that can produce deleterious results.

Answer 1

@Jamierox4ev3r

Answer 2

rip everything

Answer 3

I mean, recombination gives you new allele \(\underline{combinations}\). It doesn't produce new alleles

Answer 4

It's definitely not A or D....

Answer 5

It wouldn't be C, because this can also happen artificially

Answer 6

B or E...hm...

Answer 7

I would say E

Answer 8

Natural selection wouldn't normally produce genes that are deleterious

Answer 9

That's true. But would recombination give us deleterious results?

Answer 10

I mean possibly... Random crossing over, and recombination of alleles, this helps increase genetic variability. Plus, because it is random there is plenty of opportunity for it to create deleterious results be accident

Answer 11

I mean, just think about down syndrome. Although that is an error in anaphase of meiosis, the same rules can apply, saying that recombination can potentially give an unwanted gene to a offspring

Answer 12

but if you think about it, it is also the only process that can change allele frequency

Answer 13

You are right. Recombination cant really give deleterious genes unless there is a hertible gene that can kill the child... and although there are selective pressures on species during their lifetime, the only thing that can determine the actual frequency of a gene showing up is mutation and recombination alone. Otherwise organisms would be reproducing asexually and nothing would be happening