9- Gene-Environment Interaction

Question 1

What does nature involve?

Answer 1

Genes, brain, physiological traits

Question 2

What does nurture involve?

Answer 2

Learning experiences

Question 3

What did Tyron study and do?

Answer 3

Smart vs dull rats, selectively bred rats to make them either smarter or duller

Question 4

What were the populations of rats like after many generations of selective breeding?

Answer 4

Two distributions are very separated from each other

Question 5

What did Tyron’s experiment show?

Answer 5

That environment does matter

Question 6

How were genetic influences shown in the Minnesota twin study?

Answer 6

MZ twins have more similar IQ scores than DZ twins

Question 7

How were environmental influences shown to be less important in the Minnesota twin study?

Answer 7

Twins reared together show different IQ scores

Question 8

What does epigenetics show?

Answer 8

An interaction between genes and environment

Question 9

6 environmental factors that can affect expression of genes

Answer 9

• Social interaction
• Financial stability
• Diet
• Medication
• Drugs
• Sport