Question 1

Choose the one most appropriate answer for each.
-enhancers

Accepted Answer

A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates 
A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates H

Question 2

Choose the one most appropriate answer for each.​
-transport control

Accepted Answer

A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation 
A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation C

Question 3

Is the lac operon transcribed when lactose is present?

Accepted Answer

A)  ​Yes, lactose binds to the repressor, allowing RNA polymerase to bind to the promoter and transcribe the operon. 
B)  ​Yes, lactose binds to RNA polymerase, allowing it to bind to the promoter and transcribe the operon. 
C)  ​No, lactose binds to the repressor, allowing it to bind to the two operators preventing transcription. 
D)  ​No, lactose has no effect on transcription of the lac operon. 
E)  ​No, lactose binds to the second operator, blocking transcription by RNA polymerase. 
A)  ​Yes, lactose binds to the repressor, allowing RNA polymerase to bind to the promoter and transcribe the operon. 
B)  ​Yes, lactose binds to RNA polymerase, allowing it to bind to the promoter and transcribe the operon. 
C)  ​No, lactose binds to the repressor, allowing it to bind to the two operators preventing transcription. 
D)  ​No, lactose has no effect on transcription of the lac operon. 
E)  ​No, lactose binds to the second operator, blocking transcription by RNA polymerase. A

Question 4

Choose the one most appropriate answer for each.​
-transcriptional control

Accepted Answer

A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation 
A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation

Question 5

Differentiation is the process by which cells

Accepted Answer

A)  ​mature into larger cells. 
B)  ​change from one type of muscle to another. 
C)  ​change to repair injuries. 
D)  ​turn on all the genomic genes. 
E)  ​express different subsets of their genes during development.. 
A)  ​mature into larger cells. 
B)  ​change from one type of muscle to another. 
C)  ​change to repair injuries. 
D)  ​turn on all the genomic genes. 
E)  ​express different subsets of their genes during development..

Question 6

Homeotic genes generally control

Accepted Answer

A)  ​X chromosome inactivation. 
B)  ​the formation of a specific body part. 
C)  hormone synthesis.​ 
D)  ​dosage compensation. 
E)  ​DNA methylation. 
A)  ​X chromosome inactivation. 
B)  ​the formation of a specific body part. 
C)  hormone synthesis.​ 
D)  ​dosage compensation. 
E)  ​DNA methylation.

Question 7

Choose the one most appropriate answer for each.​
-X chromosome inactivation

Accepted Answer

A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation 
A) ​influences the amount and kinds of mRNA assembled from structural gene 
B) ​splicing, capping, and adding a poly-A tail 
C) ​nuclear envelope selectively regulates passage of transcripts 
D) ​phosphorylation of translated protein 
E) ​dosage compensation

Question 8

The __________ governs expression of three genes active in lactose metabolism.

Accepted Answer

The answer of The __________ governs expression of three genes...

Question 9

Choose the one most appropriate answer for each.
-Barr body

Accepted Answer

A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates 
A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates

Question 10

Choose the proper item below for the following statement.
-this contains regulator, promoter, and operator regions

Accepted Answer

A) ​operon 
B) ​operator 
C) ​promoter 
D) ​riboswitch 
E) ​regulator protein 
A) ​operon 
B) ​operator 
C) ​promoter 
D) ​riboswitch 
E) ​regulator protein

Question 11

Mutation in a B group gene in Arabidopsis thaliana affects development in its flower's

Accepted Answer

A)  ​first whorl only. 
B)  ​second whorl only. 
C)  ​third whorl only. 
D)  ​first and second whorls. 
E)  ​second and third whorls. 
A)  ​first whorl only. 
B)  ​second whorl only. 
C)  ​third whorl only. 
D)  ​first and second whorls. 
E)  ​second and third whorls.

Question 12

Which statement is false concerning X chromosome inactivation?

Accepted Answer

A)  ​It is an accident of evolution. 
B)  ​It is an example of dosage compensation. 
C)  ​It is a gene control mechanism. 
D)  ​It is responsible for the normal development of female embryos. 
E)  ​It does not occur in males. 
A)  ​It is an accident of evolution. 
B)  ​It is an example of dosage compensation. 
C)  ​It is a gene control mechanism. 
D)  ​It is responsible for the normal development of female embryos. 
E)  ​It does not occur in males.

Question 13

Repressors

Accepted Answer

A)  bind to operators.​ 
B)  ​lie between operators. 
C)  ​lie between promoters. 
D)  ​lie downstream from operators. 
E)  ​are part of an operon. 
A)  bind to operators.​ 
B)  ​lie between operators. 
C)  ​lie between promoters. 
D)  ​lie downstream from operators. 
E)  ​are part of an operon.

Question 14

In an egg, cytoplasmic localization of mRNA occurs when the transcripts

Accepted Answer

A)  ​are bound to specific proteins. 
B)  ​are small enough. 
C)  ​are attached to fat soluble molecules. 
D)  ​contain specific introns. 
E)  ​are attached to ribosome subunits manufactured in the nucleus. 
A)  ​are bound to specific proteins. 
B)  ​are small enough. 
C)  ​are attached to fat soluble molecules. 
D)  ​contain specific introns. 
E)  ​are attached to ribosome subunits manufactured in the nucleus.

Question 15

Researchers tend to name genes based on what happens in their absence. The tinman gene in Drosophila results in flies

Accepted Answer

A)  ​without hearts. 
B)  ​with nonjointed legs. 
C)  ​with a thick exoskeleton. 
D)  ​with rust colored eyes. 
E)  ​without brains. 
A)  ​without hearts. 
B)  ​with nonjointed legs. 
C)  ​with a thick exoskeleton. 
D)  ​with rust colored eyes. 
E)  ​without brains.

Question 16

Transcription factors include

Accepted Answer

A)  ​activators and repressors. 
B)  ​repressors. 
C)  ​activators, repressors, and enhancers. 
D)  ​activators, repressors, and translational factors. 
E)  ​enhancers and repressors. 
A)  ​activators and repressors. 
B)  ​repressors. 
C)  ​activators, repressors, and enhancers. 
D)  ​activators, repressors, and translational factors. 
E)  ​enhancers and repressors.

Question 17

In knockout experiments,

Accepted Answer

A)  ​genes are added to chromosomes. 
B)  ​normal genes are replaced physically by mutated genes. 
C)  ​genes are mutated or deleted to prevent their expression. 
D)  ​mRNAs are prevented from attaching to ribosomes. 
E)  ​the protein products of specific genes are inactivated. 
A)  ​genes are added to chromosomes. 
B)  ​normal genes are replaced physically by mutated genes. 
C)  ​genes are mutated or deleted to prevent their expression. 
D)  ​mRNAs are prevented from attaching to ribosomes. 
E)  ​the protein products of specific genes are inactivated.

Question 18

A low number of methyl groups associated with a gene encoding a hormone that fosters prenatal growth and development is common in individuals

Accepted Answer

A)  with cancer.​ 
B)  ​conceived duringfamine. 
C)  ​exposed tochemicals in cigarette smoke. 
D)  ​with young parents. 
E)  of ​certain ethnic groups. 
A)  with cancer.​ 
B)  ​conceived duringfamine. 
C)  ​exposed tochemicals in cigarette smoke. 
D)  ​with young parents. 
E)  of ​certain ethnic groups.

Question 19

Choose the one most appropriate answer for each.
-master genes

Accepted Answer

A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates 
A) a condensed X chromosome 
B) protein that combines with DNA all along its length 
C) attaches or detaches from operator to regulate transcription 
D) portion of the operon that binds RNA polymerase 
E) genes that induce expression of other genes
F)genes controlling the development of the body plan
G)the mutated form of this gene is associated with breast cancer
H)binding sites on DNA for regulatory proteins that increase transcription rates

Question 20

Explain why grandsons of boys who survived a famine lived longer than grandsons of boys who did not experience a famine?

Accepted Answer

There are many elements to consider in t

Exam 10: Gene Control

Choose the one most appropriate answer for each. -enhancers

Choose the one most appropriate answer for each.​ -transport control

Is the lac operon transcribed when lactose is present?

Choose the one most appropriate answer for each.​ -transcriptional control

Differentiation is the process by which cells

Homeotic genes generally control

Choose the one most appropriate answer for each.​ -X chromosome inactivation

The __________ governs expression of three genes active in lactose metabolism.

Choose the one most appropriate answer for each. -Barr body

Choose the proper item below for the following statement. -this contains regulator, promoter, and operator regions

Mutation in a B group gene in Arabidopsis thaliana affects development in its flower's

Which statement is false concerning X chromosome inactivation?

Repressors

In an egg, cytoplasmic localization of mRNA occurs when the transcripts

Researchers tend to name genes based on what happens in their absence. The tinman gene in Drosophila results in flies

Transcription factors include

In knockout experiments,

A low number of methyl groups associated with a gene encoding a hormone that fosters prenatal growth and development is common in individuals

Choose the one most appropriate answer for each. -master genes

Explain why grandsons of boys who survived a famine lived longer than grandsons of boys who did not experience a famine?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Starts - Photosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizating Information About Species

Lifes Origin and Early Evolution

Viruses - Bacteria - and Archaea

Protists - the Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution - the Invertibrates

Animal Evolution - the Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Filters

Choose the one most appropriate answer for each. -transport control

Choose the one most appropriate answer for each. -transcriptional control

Choose the one most appropriate answer for each. -X chromosome inactivation