Notes: Topic 1 pt.3

Question 1

What is “Heritability”?

Answer 1

a measure of how much genetics pays a part in variation

Question 2

How can we measure Heritability? (2 ways)

Answer 2

1) observing people who have the same genes but different environments, and observing people with different genes but have the same environment
2) observing twins

Question 3

What are two designs of Adoption studies

Answer 3

1. observing mothers who give children up for adoption
2. observing individuals that were adopted

Question 4

Who conducted the first twin study in Britain 1875

Answer 4

Francis Galton

Question 5

What is the difference between Monozygotic twins and Dizygotic twins?

Answer 5

MZ = Identical, single fertilized off that splits into two
DZ = Non identical twins, two separate fertilized eggs

Question 6

How do correlation scores between twins work?

Answer 6

its a score between 0-1, 0 being not similar and 1 being something is completely determined by genes .

Question 7

To determine the evolution of brains, what good comparative method is useful

Answer 7

Comparing ourselves to our closest relatives (species) like chimpanzees, who we share a common ancestor with