week 3

Question 1

components of variation

Answer 1

• G or A: variation due to genes
• C: variation due to shared environment
• E: variation due to unique or non-shared environment

Question 2

meaning of heritability

Answer 2

• number between 0 and 1, reflecting the proportion of variation in that trait in that population which is due to variation in genotype
• does not say anything about whether something in an individual is ‘due to his genes’