Recitation: Selection as a Process in Evolution

Question 1

… is the engine that drives changes in gene frequencies

Answer 1

differential reproductive success

Question 2

some of this variation is due to… in genes, and some of it is due to specific … and/or … events of particular individuals

Answer 2

random changes; developmental; life history

Question 3

some variations of traits will be associated with an organism’s

Answer 3

chance of reproductive success

Question 4

reproductive success is measured by how many

Answer 4

offspring it produces

Question 5

if the variation increases reproductive success, we say that the variant (trait) is “…” or just …”

Answer 5

selected for; selected

Question 6

if the variant decreases or eliminates an individual’s reproductive success, we say that the variant trait is

Answer 6

“selected against”