Question 1

In a prokaryotic cell,

Accepted Answer

A)  transcription and translation occur simultaneously. 
B)  transcription occurs in the nucleus while translation takes place in the cytoplasm. 
C)  translation occurs before transcription. 
D)  transcription and translation are separated in time and place. 
E)  transcription and translation are considerably slower than in eukaryotic cells. 
A)  transcription and translation occur simultaneously. 
B)  transcription occurs in the nucleus while translation takes place in the cytoplasm. 
C)  translation occurs before transcription. 
D)  transcription and translation are separated in time and place. 
E)  transcription and translation are considerably slower than in eukaryotic cells.

Question 2

Which of the following processes is responsible for the conversion of DNA information into messenger RNA?

Accepted Answer

A)  replication 
B)  transcription 
C)  duplication 
D)  translation 
E)  any of these 
A)  replication 
B)  transcription 
C)  duplication 
D)  translation 
E)  any of these

Question 3

Sickle-cell anemia has been traced to what type of mutation?

Accepted Answer

A)  frameshift 
B)  base-pair substitution 
C)  mutagenic 
D)  transposable element 
E)  viral 
A)  frameshift 
B)  base-pair substitution 
C)  mutagenic 
D)  transposable element 
E)  viral

Question 4

MATCHING
Answer the following questions regarding protein synthesis by matching each term with the most appropriate description.
a.anticodon
b.rRNA
c.codon
d.ribosome
e.genetic code
f.translation termination
g.messenger RNA
h.promoters
i.transcription
j.translation
-site at which RNA polymerase binds and initiates transcription

Accepted Answer

The answer of MATCHING
Answer the following questions regarding protein synthesis...

Question 5

MATCHING
Answer the following questions regarding protein synthesis by matching each term with the most appropriate description.
a.anticodon
b.rRNA
c.codon
d.ribosome
e.genetic code
f.translation termination
g.messenger RNA
h.promoters
i.transcription
j.translation
-complex with proteins to form ribosomes

Accepted Answer

The answer of MATCHING
Answer the following questions regarding protein synthesis...

Question 6

Four of the five answers listed below are related to translation.Select the EXCEPTION.

Accepted Answer

A)  ribosomes 
B)  transcription 
C)  DNA polymerase 
D)  mRNA 
E)  tRNA 
A)  ribosomes 
B)  transcription 
C)  DNA polymerase 
D)  mRNA 
E)  tRNA

Question 7

Which nucleotide forms the tail of a completed messenger RNA transcript?

Accepted Answer

A)  adenine 
B)  thymine 
C)  cytosine 
D)  guanine 
E)  a combination of more than one of these 
A)  adenine 
B)  thymine 
C)  cytosine 
D)  guanine 
E)  a combination of more than one of these

Question 8

A gene is a DNA sequence that codes for a protein or

Accepted Answer

A)  RNA. 
B)  DNA. 
C)  ribosomes. 
D)  a lipid. 
E)  more than one of these. 
A)  RNA. 
B)  DNA. 
C)  ribosomes. 
D)  a lipid. 
E)  more than one of these.

Question 9

____ molecules carry amino acids to ribosomes.

Accepted Answer

A)  Template RNA 
B)  Messenger RNA 
C)  Transfer RNA 
D)  Ribosomal RNA 
E)  All of these 
A)  Template RNA 
B)  Messenger RNA 
C)  Transfer RNA 
D)  Ribosomal RNA 
E)  All of these

Question 10

Which of the letters in the genetic code are most important for the translation of many amino acids?

Accepted Answer

A)  the first one 
B)  the first two 
C)  the last two 
D)  the last one 
E)  all three are equally important for all amino acids 
A)  the first one 
B)  the first two 
C)  the last two 
D)  the last one 
E)  all three are equally important for all amino acids

Question 11

The information from messenger RNA is used to create polypeptide sequences during the process of

Accepted Answer

A)  transduction. 
B)  transcription. 
C)  transformation. 
D)  translation. 
E)  transreification. 
A)  transduction. 
B)  transcription. 
C)  transformation. 
D)  translation. 
E)  transreification.

Question 12

What molecule initiates translation after an egg is fertilized?

Accepted Answer

A)  maternal mRNA 
B)  paternal promoters in sperm 
C)  maternal transcription factors 
D)  transposable elements 
E)  paternal DNA 
A)  maternal mRNA 
B)  paternal promoters in sperm 
C)  maternal transcription factors 
D)  transposable elements 
E)  paternal DNA

Question 13

To which of the following books does DNA compare?

Accepted Answer

A)  a novel 
B)  a mathematics textbook 
C)  a cookbook 
D)  a travel guide 
E)  a biography 
A)  a novel 
B)  a mathematics textbook 
C)  a cookbook 
D)  a travel guide 
E)  a biography

Question 14

What percent of our DNA actually codes for protein products?

Accepted Answer

A)  3 
B)  26 
C)  48 
D)  71 
E)  100 
A)  3 
B)  26 
C)  48 
D)  71 
E)  100

Question 15

What is at the center of a heme molecule in a hemoglobin?

Accepted Answer

A)  a beta globin chain 
B)  an alpha globin chain 
C)  iron 
D)  nitrogen 
E)  another heme molecule 
A)  a beta globin chain 
B)  an alpha globin chain 
C)  iron 
D)  nitrogen 
E)  another heme molecule

Question 16

Epigenetics is most closely associated with which of the following?

Accepted Answer

A)  base-pair substitution 
B)  metylation 
C)  Barr bodies 
D)  hydrolysis 
E)  phosphorylation 
A)  base-pair substitution 
B)  metylation 
C)  Barr bodies 
D)  hydrolysis 
E)  phosphorylation

Question 17

For eukaryotes,translation takes place in the

Accepted Answer

A)  nucleus. 
B)  nucleolus. 
C)  cytoplasm. 
D)  plasma membrane. 
E)  nucleus and cytoplasm. 
A)  nucleus. 
B)  nucleolus. 
C)  cytoplasm. 
D)  plasma membrane. 
E)  nucleus and cytoplasm.

Question 18

Which of the following is NOT true of homeotic genes?

Accepted Answer

A)  they control the development of body parts 
B)  they are highly conserved genes 
C)  they are specific to specific species 
D)  PAX6 is an example of one 
E)  they have been discovered by knockout experiments 
A)  they control the development of body parts 
B)  they are highly conserved genes 
C)  they are specific to specific species 
D)  PAX6 is an example of one 
E)  they have been discovered by knockout experiments

Question 19

Which of the following processes is (are)part of gene expression?

Accepted Answer

A)  I and II 
B)  I and III 
C)  II and III 
D)  I, II, and III 
E)  III only 
A)  I and II 
B)  I and III 
C)  II and III 
D)  I, II, and III 
E)  III only

Question 20

Classification.Answer the questions in reference to the five RNA codons listed below.
 a.AUG
b.CAU
c.UUG
d.UUA
e.AAA
-A single mutation involving the second letter of codon AUA would convert it to this codon.

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Exam 7: Gene Expression and Control

In a prokaryotic cell,

Which of the following processes is responsible for the conversion of DNA information into messenger RNA?

Sickle-cell anemia has been traced to what type of mutation?

Four of the five answers listed below are related to translation.Select the EXCEPTION.

Which nucleotide forms the tail of a completed messenger RNA transcript?

A gene is a DNA sequence that codes for a protein or

____ molecules carry amino acids to ribosomes.

Which of the letters in the genetic code are most important for the translation of many amino acids?

The information from messenger RNA is used to create polypeptide sequences during the process of

What molecule initiates translation after an egg is fertilized?

To which of the following books does DNA compare?

What percent of our DNA actually codes for protein products?

What is at the center of a heme molecule in a hemoglobin?

Epigenetics is most closely associated with which of the following?

For eukaryotes,translation takes place in the

Which of the following is NOT true of homeotic genes?

Which of the following processes is (are)part of gene expression?

Classification.Answer the questions in reference to the five RNA codons listed below. a.AUG b.CAU c.UUG d.UUA e.AAA -A single mutation involving the second letter of codon AUA would convert it to this codon.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters