Mutations

Question 0

Founder effect

Answer 0

When a family unit leaves and finds a new colony leading to a small amount in variation

Question 1

Genetic drift

Answer 1

Change in allele frequency due to random chance, not natural selection

Ex) an individual falling down the stairs and dying cannot repeat again

Question 2

Bottleneck

Answer 2

When a pop dies almost completely off while lost of the variation in the popp disappear caused by natural selection or genetic drift

Question 3

Gene flow

Answer 3

Two pop we separate transforming the popp into different groups through mutations and natural selection . However, if the two mate and exchange Dna they become similar again

Question 4

Allopathic speciation

Answer 4

Physical barrier that separates two or more individuals from the popp

Ex)two squirrel pop separated by Colorado river . Over millions of year the two adapt differently in their environments creating grey vs. Brown squirrels

Question 5

Sympatric speciation

Answer 5

Group is isolated from the original pop without a physical barrier .

Ex)cichlid fish in lake Victoria accrued mutations that better suit the prey at different levels in the lake leading to new mating behaviors .