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Biology : The Unity and Diversity of Life

Cecie Starr, Christine A. Evers; Lisa Starr

Chapter 10

Control of Gene Expression - all with Video Answers

Educators

Chapter Questions

01:01

Problem 1

Gene expression does not vary by
a. cell type
c. stage of development
b. extracellular conditions
d. the genetic code

Aditya Sood
Aditya Sood
Numerade Educator
00:36

Problem 2

Binding of to in DNA can increase the
rate of transcription of specific genes.
a. activators; repressors
b. activators; enhancers
c. repressors; operators
d. repressors; enhancers

Aditya Sood
Aditya Sood
Numerade Educator
00:30

Problem 3

Muscle cells differ from bone cells because they
a. carry different genes
c. are eukaryotic
b. express different genes
d. are different ages

Aditya Sood
Aditya Sood
Numerade Educator
00:39

Problem 4

Proteins that influence RNA synthesis by binding directly to DNA are called
a. promoters
c. operators
b. transcription factors
d. enhancers

Aditya Sood
Aditya Sood
Numerade Educator
00:46

Problem 5

Mechanisms that govern gene expression do not operate during
a. transcription
c. translation
b. RNA processing
d. knockouts

Aditya Sood
Aditya Sood
Numerade Educator
00:21

Problem 6

Control over eukaryotic gene expression drives
a. transcription factors
c. embryonic development
b. nutrient availability
d. all of the above

Mishal Gul
Mishal Gul
Numerade Educator
01:11

Problem 7

Homeotic gene expression
a. occurs via bacterial operons
b. maps out the overall body plan in embryos
c. triggers formation of a specific body part

Charles Machakwa
Charles Machakwa
Numerade Educator
01:03

Problem 8

A gene that is knocked out is
a. duplicated
c. expressed
b. inactivated
d. a master regulator

Charles Machakwa
Charles Machakwa
Numerade Educator
01:14

Problem 9

Which of the following includes all of the others?
a. homeotic genes
c. SRY gene
b. master regulators
d. $P A X 6$

Charles Machakwa
Charles Machakwa
Numerade Educator
00:58

Problem 10

The expression of $A B C$ genes
a. occurs in layers of an onion
b. controls flower formation
c. causes mutations in flowers

Quoc Tran
Quoc Tran
Numerade Educator
01:13

Problem 11

During $X$ chromosome inactivation,
a. female cells shut down
b. RNA sticks to a chromosome
c. pigments form

Charles Machakwa
Charles Machakwa
Numerade Educator
00:28

Problem 12

A cell with a Barr body is
a. a bacterium
c. from a female mammal
b. a sex cell
d. infected by the Barr virus

Quoc Tran
Quoc Tran
Numerade Educator
01:14

Problem 13

Operons
a. only occur in bacteria
b. include multiple genes
c. involve selective gene expression

Aditya Sood
Aditya Sood
Numerade Educator
01:11

Problem 14

Which of the following statements is incorrect?
a. Some gene expression patterns can be passed to an individual's offspring.
b. Expression of a master regulator triggers a gene expression cascade.
c. X chromosome inactivation is necessary for normal development of male mammals.

Charles Machakwa
Charles Machakwa
Numerade Educator
01:25

Problem 15

15. Match the terms with the most suitable description.
operon
a. makes a man out of you Circadian rhythm
b. binding site for repressor Barr body
c. can be epigenetic differentiation
d. inactivated X chromosome mRNA zip code
e. controls multiple genes DNA methylation
localization mechanism
eyeless
g. speeds transcription activator
h. required for eye formation SRY gene
i. effect of regulatory loops operator
j. cells become specialized

Mishal Gul
Mishal Gul
Numerade Educator