Mechanisms of evolution

Question 1

Founder effect

Answer 1

A new colony is started by a few members of the original population. Reduced genetic variation from original pop

Question 2

Random event kills random individuals within a population, randomly altering allele frequencies within a population

Answer 2

Bottleneck effect

Question 3

Genetic drift

Answer 3

Random events cause allele frequencies to fluctuate unpredictably from one generation to the next

Question 4

Adaptive radiation

Answer 4

Periods of evolutionary change in which groups of organisms form many new species whose adaptations allow them to fill different niches

Question 5

Gene Flow

Answer 5

The movement of alleles between populations

Question 6

Mutation

Answer 6

Random change within DNA

Question 7

Mutations can be

Answer 7

Useful, neutral, or harmful for an organism. But dont try to supply what the organism needs.

Question 8

Mutations that won’t be passed onto offspring due to being in a non-reproductive cell

Answer 8

Somatic Mutation

Question 9

What factors can trigger adaptive radiation

Answer 9

Ecological opportunity, evolutionary innovations, ecological interactions, and environmental changes