Infants And Children Prenatal through Middle Childhood 8th Edition - Test Bank

CHAPTER 2

GENETIC AND ENVIRONMENTAL FOUNDATIONS

MULTIPLE CHOICE

1) 2) 3) 4) Hair color is an example of a

A) karotype.

B) phenotype.

C) gamete.

D) genotype.

Answer: B

Page Ref: 51

Skill: Remember

Objective: 2.1

Directly observable characteristics are affected by an individual’s lifelong history of experiences and also by the

individual’s

A) karotypes.

B) phenotypes.

C) gametes.

D) genotype.

Answer: D

Page Ref: 51

Skill: Understand

Objective: 2.1

A __________ is a complex blend of genetic information that determines our species and influences all our unique

characteristics.

A) chromosome

B) genotype

C) phenotype

D) karotype

Answer: B

Page Ref: 51

Skill: Remember

Objective 2.1

The nucleus of a cell contains

A) karotypes.

B) chromosomes.

C) genotypes.

D) phenotypes.

Answer: B

Page Ref: 51

Skill: Remember

Objective: 2.15) Chromosomes

A) store and transmit genetic information.

B) come in 46 matching pairs.

C) are inherited from the mother only.

D) are inherited from the father only.

Answer: A

Page Ref: 51

Skill: Remember

Objective: 2.1

6) Generally, human __________ come in 23 matching pairs.

A) chromosomes

B) phenotypes

C) cells

D) genotypes

Answer: A

Page Ref: 51

Skill: Remember

Objective: 2.1

7) Each rung of the DNA ladder

A) is made up of thousands of chromosomes.

B) contains 20,000 genes.

C) consists of a pair of chemical substances called bases.

D) contains 23 matching pairs.

Answer: C

Page Ref: 52

Skill: Understand

Objective: 2.1

8) On the DNA ladder, adenine always appears

A) alone.

B) with thymine.

C) with cytosine.

D) with guanine.

Answer: B

Page Ref: 53

Skill: Remember

Objective: 2.1

9) An estimated 21,000 __________, which directly affect our body’s characteristics, lie along the human chromosomes.

A) nuclei

B) regulator genes

C) protein-coding genes

D) sex genes

Answer: C

Page Ref: 52

Skill: Remember

Objective: 2.110) Zookeeper Ross knows that he shares some of his genetic mak