Question

Which of the following is least likely to change the gene pool of a population of chipmunks?
a) A pesticide poisons and kills a large number of chipmunks.
b) A group of chipmunks moves to a new habitat.
c) A number of chipmunks die due to old age.
d) A genetic mutation causes some of the chipmunks to have larger eyes.

I'm not entirely grasping how things affect genetics. Logically I feel that the answer is D. Will someone please help me confirm or deny this?

Answer 1

I think it would be C.

Answer 2

There is no selection going on in choice C - death due to natural causes would not change the frequency of alleles and therefore the gene pool.

Answer 3

How does that change the gene pool though?

Answer 4

Its asking about the least likely to change the gene pool.

Answer 5

Oh, right, man. I should read things through a little better. Thank you

Answer 6

Haha sure no problem!

Answer 7

Got any more questions? I can help you!

Answer 8

btw medal pls! :)

Answer 9

I might here in a minute, I'm working on a review for my exam tomorrow. I will comment on here again if I have more trouble

Answer 10

Sure, no problem!

Answer 11

In pea plants, purple flower color, C, is dominant to white flower color, c. The table shows the frequencies of the dominant and recessive alleles in three generations of peas in a garden. Generation 1 has 200 flowers, generation 2 has 400, generation 3 has 400.

Generation p q
1 0.5 0.5
2 0.6 0.4
3 0.7 0.3

Which best describes the number of flowers?
Generation 1 has more white flowers than generation 2.
Generation 3 has more white flowers than generation 2.
Generation 2 has fewer purple flowers than generation 1.
Generation 1 has fewer purple flowers than generation 3.