Chapter 2: Genetic Bases of Heredity

Question 1

Gametes

Answer 1

Sperm and Egg Cells

Question 2

How many chromosomes does a single gamete have?

Answer 2

23

Question 3

In Vitro Fertilization

Answer 3

Sperm and egg cell conceived in lab then put in mother

Question 4

Autosomes

Answer 4

First 22 pairs of chromosomes

Question 5

Sex Chromosomes

Answer 5

23rd pair

Determine sex of child

Question 6

Where is DNA located?

Answer 6

In Chromosomes; 1 per chromosome

Question 7

Genotype

Answer 7

Set of person’s genes

Question 8

Alleles

Answer 8

Different forms of genes

Question 9

Why is it more common for african-americans to have sickle cell disease than other races

Answer 9

Sickle cell disease is resistant to malaria, commonly found in Africa

Question 10

What does sickle cell disease tell us about cultural influence

Answer 10

Alleles may have value in one environment but not another

Question 11

Huntington’s Disease

Answer 11

One of the few diseases that is dominant, but isn’t active until late in life

Question 12

Behavioural Genetics

Answer 12

Branch of genetics dealing with inheritance of behavioral and psychological

Question 13

Polygenic Inheritance

Answer 13

Combined activity to create a phenotype

Question 14

Reaction range

Answer 14

Range of phenotypes a gene could express based off environmental factors

Question 15

Epigensis

Answer 15

multiple levels of environment that drive development

Question 16

Heritability Coefficient

Answer 16

Estimate extent to which differences in people reflect heredity

.5 = 50% difference in people due to heredity

Question 17

Niche-picking

Answer 17

Deliberately seeking an environment that fits one’s heredity

Question 18

Non-shared environmental influence

Answer 18

Environments that only one of the two people being compared experience

Question 19

Shared environmental influence

Answer 19

Environments that the two people being compared share