Topic 7- selective advantage

Question 1

What is selective advantage?

Answer 1

organisms with phenotypes providing selective advantages are likely to produce more offspring and pass on their favourable alleles to the next generation

Question 2

What effect does differential reproductive success have on the gene pool over time

Answer 2

Alleles that are favourable (provide a selective advantage) will increase in frequency in a gene pool
Alleles that are not favourable (don’t provide a selective advantage) will decrease in frequency in a gene pool

Question 3

Give some examples of environmental factors that limit survival

Answer 3

-Competition for food
-Competition for a reproductive mate
-Supply of water
-Temperature