Ch 2 Flashcards Preview

Human Development > Ch 2 > Flashcards

Flashcards in Ch 2 Deck (18):
1

Genotype

Complex blend of genetic information that determines our species and influences all our unique characteristics

2

Chromosomes

Rodlike structures that store and transmit genetic information

3

Protein coding genes

Directly affect our body's characteristics

4

Regulator genes

Modify the instructions given by protein coding genes

5

Gametes

Sex cells - the sperm and ovum

6

Meiosis

Gametes are formed through this process

7

Zygote

Sperm and ovum unite at conception

8

Autosomes

22 of 23 pairs of chromosomes are matching pairs

9

Chromosomes

Twenty third pair either X or Y

10

Allele

Two forms of gene, one from the father and mother

11

Incomplete dominance

A pattern of inheritance in which both alleles are expressed in the phenotype, resulting in a combined trait, or one that is intermediate between the two

12

X linked inheritance

When a harmful allele is carried on the X chromosome, males are more likely to be affected because their sex chromosomes do not match

13

Socioeconomic status

1 years of education
2 prestige of one's job and the skill it requires, both of which measures social status
3 income

14

Gene environment interaction

Because of their genetic makeup, individuals differ in their responsiveness to qualities of the environment

15

Gene environment correlation

Genes influence the environments to which we are exposed

16

Niche picking

Tendency to actively choose environments that complement our heredity

17

Methylation

Biochemical process triggered by certain experiences, where a methyl group lands on top of a gene and changes its impact, reducing or silencing it's expression

18

Phenotype

Directly observable characteristics