Inheritance

Question 1

Evolution

Answer 1

The change in frequency of an allele in a population over time

Question 2

Gene pool

Answer 2

The complete range of alleles in a population

Question 3

Allele frequency

Answer 3

How often an allele occurs in a population

Question 4

Stabilising selection

Answer 4

When the envi isn’t changing much and the individual with alleles for the characteristics near the middle of the range are more likely to reproduce and survive

Question 5

What does stabilising selection do the range of phenotypes

Answer 5

It reduces it

Question 6

Directional selection

Answer 6

When envi is changing and infividals with characteristics for extreme type of envi are more likely to survive and reproduce

Question 7

Processes of evolution

Answer 7

Natural selection

Genetic drift

Question 8

Generic drift

Answer 8

When chance determines which alleles are passed onto offspring

Question 9

Why does genetic drift have a greater effect in smaller pops rather than larger populations

Answer 9

Because chance has a a greater effect in smaller populations
In larger populations changes to allele frequency due to chance Are spread out over whole population

Question 10

Genetic bottleneck

Answer 10

When an event causes a large reduction in the population size resulting in a large decrease in gene pool

Question 11

Founder effect

Answer 11

When a few organisms form a population with a small number of DIFF alleles start a new population