Factors Affecting Genetic Variation-Standard Bio 4.3

Question 1

Changing can cause certain traits to be favored through This can lead to changes in .

Revolt · Accepted Answer

environmental factors

Question 2

.

Revolt · Accepted Answer

natural selection

Question 3

Changing can cause certain traits to be favored through This can lead to changes in .

Revolt · Accepted Answer

genetic variation

Question 4

The random change in the frequency of an allele in a population

Revolt · Accepted Answer

genetic drift

Question 5

If having long fur helps a guinea pig survive, what would you expect to see change in the population as it evolves?

Revolt · Accepted Answer

the F allele is more common

Question 6

Decide which examples are most likely to increase variation or decrease variation. Some examples could do both.Which of the following could possibly increase genetic variation indirectly?

Revolt · Accepted Answer

toxins; new habitat; increased food supply

Question 7

The sum of the genetic traits in this population is called its .

Revolt · Accepted Answer

gene pool

Question 8

The transfer of genes from one population to another

Revolt · Accepted Answer

gene flow

Question 9

Which of the following can typically decrease genetic variation?

Revolt · Accepted Answer

toxins; predator-prey relationships; competition; new habitat; disasters

Question 10

There is a total of alleles in this population.

Revolt · Accepted Answer

8

Factors Affecting Genetic Variation-Standard Bio 4.3 Answers

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