Define:
a) Genotype
b) Phenotype

Define:
a) Gene
b) Allele

What is co-dominance?

What is a sex-linked trait?

Why are sex-linked diseases more common in men?

What is haemophilia?

What is meant by the term 'multiple alleles'?

Define:
a) gene pool
b) Allelic frequency

What does the Hardy-Weinberg principle predict?

What five conditions must be met for the Hardy-Weinberg principle to be true?

Explain how 'advantageous allele' frequency increases over time:

What are two types of selection?

What causes directional selection?

What occurs during directional selection?

What occurs as a result of directional selection?

What causes stabilising selection?

What occurs during stabilising selection?

What happens as a result of stabilising selection?

What is speciation?

When does speciation occur? - Give an example

Describe how speciation occurs: