Module 7- Populations

Question 1

3 marks

What does the Hardy- Weinberg principle predict?

Answer 1

1. The frequency of alleles (of a particular gene)
2. Will stay constant over generations
3. Providing no mutation/ no selection/ mating at random/ large population/ no migration

Question 2

2 marks

The scientists concluded that the observed frequencies of the four phenotypes differed significantly from the expected frequencies. Use your knowledge of the Hardy–Weinberg principle to suggest two reasons why

Answer 2

1. Selection against/for a phenotype
2. High rate of mutation
3. Immigration/emigration
4. No random mating