Genetic Drift (Updated)

What does chance mean?

• Random

• Intentional

When you run over a few insects with your scooter while trick or treating it is -

• intentional.

• random.

What are the differences in the insect population called?

• clones

• variation

• genes

Genetic variation is -

• negative.

• positive.

When the insects are run over by the scooter is it an example of natural selection?

• Yes!

• No.

What is genetic drift?

• Nature chooses traits and changes the allele frequency of the population.

• Random events change the allele frequency of the population.

What does frequency mean?

• The most.

• The least.

• How often.

• How soon.

There are 4 blue alleles and 2 orange alleles. A random event occurs(bottleneck or founder). Now there are 2 blue alleles and 2 orange alleles. 

• The frequency of each color is the same as the original population.

• The frequency of the blue allele has decreased.

• The frequency of the orange allele has decreased.

What is the main difference between natural selection and genetic drift?

• Natural selection is a random event that changes the allele frequencies in the population. Genetic drift choose the best traits to survive and reproduce.

• Genetic drift is a random event that changes the allele frequencies in the population. Natural selection choose the best traits to survive and reproduce.

Are the same versions of the trait outside the bottle that are found inside?

• Yes!

• No.