Allelic Frequency

Question 1

4 factors affecting are?

Answer 1

1. Immigration
2. Natural selection
3. Genetic drift
4. Non-random mating

Question 2

3 characteristics of genetic drift

Answer 2

Small population;

Chance;

Reduction in genetic variation;

Question 3

Two types of genetic drift

Answer 3

1. Bottle-neck
   - >Hugh depopulation
2. Founders effect
   - existing population;
   - small gp leaving

Question 4

Eg of non-random mating

Answer 4

Salmon;

Female prefer male they is bigger size;

Bigger size=better gene