4b. Heredity, heritability, and Gene- environment interaction

Question 1

a person’s characteristic emotional reactivity and intensity

Answer 1

temperament

Question 2

who have often have similar temperaments? Identical or fraternal twins?

Answer 2

identical

Question 3

what study is used to estimate the heritability of a trait

Answer 3

twin and adoption studies

Question 4

the proportion of variation among individuals in a group that we can attribute to genes.

Answer 4

heritability

Question 5

this refers to how much differences among people are due to genes

Answer 5

heritability

Question 6

those studying the heritability of a trait try to determine how much of the person-to-person variation in that trait among the members of a specific group is due to their differing______

Answer 6

genes

Question 7

genes and experience don’t interact. TRUE OR FALSE

Answer 7

FALSE (they interact)

Question 8

the subfield of biology that studies the molecular structure and function of genes

Answer 8

molecular genetics

Question 9

the study of the molecular mechanisms by which environments can influence genetic expression without a DNA changed

Answer 9

Epigenetics

Question 10

“above” or “in addition to” genetics

Answer 10

epigenetics

Question 12

Genes are not self regulating. TRUE OR FALSE

Answer 12

False (the self generate)

Question 13

are organic methyl molecules attached to part of a DNA

Answer 13

epigenetic marks

Question 14

study of environmental factors that affect how our genes are expressed

Answer 14

epigenetics

Question 15

study of how the structure and function of specific genes interact with out environment to influence behavior

Answer 15

Molecular behavior genetics

Question 16

study of the relative effects of our genes and our environment on our behavior

Answer 16

behavior genetics

Question 17

what are the three types of temperament

Answer 17

easy, difficult and slow to warm up

Question 18

Temperament is inherited or genetic. TRUE OR FALSE

Answer 18

True

Question 19

the degree to which genetics explain individual variations in a sample

Answer 19

heritability

Question 20

a statistic ranges from 0.0 to 1.0

Answer 20

heritability coefficient

Question 21

a heritability coefficient of 0.0 means

Answer 21

genes do not contribute to individual differences

Question 23

a heritability coefficient of 1.0 means

Answer 23

genes account for all individual differences

Question 24

the ability of the brain to change as a result of one’s experience

Answer 24

neuroplasticity

Question 25

epigenetics are reversible. TRUE OR FALSE

Answer 25

TRUE