Chapter 13 - Legacies of human evolutionary history: effects on the individual Flashcards Preview

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Flashcards in Chapter 13 - Legacies of human evolutionary history: effects on the individual Deck (14)
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1

Epigenome

The instructions that determine how genes are expressed in a cell

2

Essential Amino Acids

the 9 (of 22) amino acids that must be obtained from the food we eat because they are not synthesized in the body in sufficient amounts.

3

Adolescent growth spurt

The period during adolescence when well nourished teens typically increase in stature at greater rates than at other points in the life cycle

4

Epigenetics

changes in phenotype that are not related to changes in underlying DNA and that may result from the interaction between the genotype and the environment

5

Endocrine Glands

Glands responsible for the secretion of hormones in the blood stream

6

Menarche

The first menstruation in girls, usually occurring in the early to mid-teens.

7

Menopause

The end of menstruation in women, usually occurring around age 50.

8

adolescent growth spurt

The period during adolescence when well-nourished teens typically increase in stature at greater rates than at other times in the life cycle.

9

essential amino acids

The 9 ( of 22) amino acids that must be obtained from the food we eat because they are not synthesized in the body in sufficient amounts.

10

epigenome

The instructions that determine how genes are expressed in a cell.

11

epigenetics

Changes in phenotype that are not related to changes in under-lying DNA and that may result from the interaction between the genotype and the environment.

12

endocrine glands

glands respon-sible for the secretion of hormones into the bloodstream.

13

senescence

Decline in physiological functioning usually associated with aging.

14

pleiotropic genes

Genes that have more than one effect; genes that have different effects at different times in the life cycle.