Chapter 2 Flashcards

(6 cards)

1
Q

What’s a genotype and phenotype? What’s dominant and recessive inheritance?

A

Genotype: all of a person’s genetic material
Phenotype: observable characteristics

Dominant: heterozygosity (Bb or BB)
Recessive: homozygosity (bb)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the different ways to measure heritability of a trait?

A

Family studies: degree to which biological relatives share a trait

Adoption studies: degree to which adopted children resemble biological or adopted relatives

Twin studies: compares the degree to which monozygotic and dizygotic twins resemble each other for a trait

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What’s the range of reaction? Canalization?

A

Potential variation of a trait; heritable restrictions on the range of trait development

Ex of range of reaction: intellectual performance varying based on the environment one’s raised in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What’s the epigenetic view?

A

The bidirectional interchange between heredity and the environment causes development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are gene x environment (G x E) correlations?

A

3 ways the environment reflects or reinforces genetic differences

Passive:

Reactive/ Evocative:

Active/Niche-picking:

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What’s G x E interaction?

A

The interaction of a specific measured variable in DNA and a specific measured aspect of the environment (ex. Depression and a stressful environment)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly