Question 1

For eukaryotes,transcription 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 2

Which of the following is an action of ricin?

Accepted Answer

A)  binding to carbohydrates on the plasma membrane 
B)  removal of an adenine base from rRNA 
C)  ribosome inactivation 
D)  none of these are actions of ricin 
E)  all of these (except d) are actions of ricin 
A)  binding to carbohydrates on the plasma membrane 
B)  removal of an adenine base from rRNA 
C)  ribosome inactivation 
D)  none of these are actions of ricin 
E)  all of these (except d) are actions of ricin

Question 3

Frameshift mutations may involve

Accepted Answer

A)  substitution of nucleotides. 
B)  substitution of codons. 
C)  substitution of amino acids. 
D)  insertion of one to several base pairs. 
E)  all of these. 
A)  substitution of nucleotides. 
B)  substitution of codons. 
C)  substitution of amino acids. 
D)  insertion of one to several base pairs. 
E)  all of these.

Question 4

What are the non-coding segments of DNA called?

Accepted Answer

A)  introns 
B)  exons 
C)  inseqs 
D)  excisors 
E)  incisors 
A)  introns 
B)  exons 
C)  inseqs 
D)  excisors 
E)  incisors

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
-binds to ribosomes to begin translation

Accepted Answer

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

Question 6

Of all the different codons that exist,three of them

Accepted Answer

A)  are not used in any organisms. 
B)  do not code for an amino acid. 
C)  code for non-functional amino acids. 
D)  signify 'start here'. 
E)  do more than one of these things. 
A)  are not used in any organisms. 
B)  do not code for an amino acid. 
C)  code for non-functional amino acids. 
D)  signify 'start here'. 
E)  do more than one of these things.

Question 7

Heritable changes in gene expression not due to changes in DNA sequences is termed

Accepted Answer

A)  epigenetics. 
B)  methylation. 
C)  translational mutation. 
D)  differentiation. 
E)  frameshift inheritance. 
A)  epigenetics. 
B)  methylation. 
C)  translational mutation. 
D)  differentiation. 
E)  frameshift inheritance.

Question 8

When you miss a class and copy a fellow student's class notes,it is analogous to

Accepted Answer

A)  mutation of a gene. 
B)  translation of mRNA. 
C)  transcription of DNA. 
D)  protein modification. 
E)  replication of DNA. 
A)  mutation of a gene. 
B)  translation of mRNA. 
C)  transcription of DNA. 
D)  protein modification. 
E)  replication of DNA.

Question 9

How many different amino acids make up proteins?

Accepted Answer

A)  4 
B)  8 
C)  12 
D)  16 
E)  20 
A)  4 
B)  8 
C)  12 
D)  16 
E)  20

Question 10

A ribosome contains

Accepted Answer

A)  RNA. 
B)  DNA. 
C)  proteins. 
D)  RNA and proteins. 
E)  RNA, DNA, and proteins. 
A)  RNA. 
B)  DNA. 
C)  proteins. 
D)  RNA and proteins. 
E)  RNA, DNA, and proteins.

Question 11

Which of the following is a master gene that controls eye development?

Accepted Answer

A)  PAX6 
B)  FOXP2 
C)  ICU 
D)  SRY 
E)  STP 
A)  PAX6 
B)  FOXP2 
C)  ICU 
D)  SRY 
E)  STP

Question 12

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
-a tRNA triplet complementary to a mRNA codon

Accepted Answer

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

Question 13

Of the nucleic acids listed below,which is most like a cookbook in its function?

Accepted Answer

A)  DNA 
B)  messenger RNA 
C)  ribosomal RNA 
D)  transfer RNA 
E)  NADH 
A)  DNA 
B)  messenger RNA 
C)  ribosomal RNA 
D)  transfer RNA 
E)  NADH

Question 14

How many bases change during DNA replication?

Accepted Answer

A)  17.5 
B)  175 
C)  1750 
D)  17500 
E)  175000 
A)  17.5 
B)  175 
C)  1750 
D)  17500 
E)  175000

Question 15

In transcription,

Accepted Answer

A)  several proteins can made from the same DNA molecule. 
B)  promoters are at the beginning of a gene. 
C)  messenger RNA is produced. 
D)  a specific enzyme called RNA polymerase is required. 
E)  all of these are true. 
A)  several proteins can made from the same DNA molecule. 
B)  promoters are at the beginning of a gene. 
C)  messenger RNA is produced. 
D)  a specific enzyme called RNA polymerase is required. 
E)  all of these are true.

Question 16

Which of the following is NOT true of the genetic code?

Accepted Answer

A)  It is the same for almost all organisms. 
B)  There are 64 codons. 
C)  It has within it 5 stop codons. 
D)  Most amino acids have more than one codon that codes for it. 
E)  Each codon is made up of three nucleotides. 
A)  It is the same for almost all organisms. 
B)  There are 64 codons. 
C)  It has within it 5 stop codons. 
D)  Most amino acids have more than one codon that codes for it. 
E)  Each codon is made up of three nucleotides.

Question 17

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

Accepted Answer

A)  nucleotides 
B)  thymine 
C)  RNA polymerase 
D)  messenger RNA 
E)  DNA 
A)  nucleotides 
B)  thymine 
C)  RNA polymerase 
D)  messenger RNA 
E)  DNA

Question 18

____ are involved in the regulation of gene expression.

Accepted Answer

A)  Transcription factors 
B)  Translation factors 
C)  Transposable elements 
D)  Metylation 
E)  Phosphorylation 
A)  Transcription factors 
B)  Translation factors 
C)  Transposable elements 
D)  Metylation 
E)  Phosphorylation

Question 19

If an anticodon was AUG,what would the corresponding nucleotides on DNA be?

Accepted Answer

A)  TAC 
B)  ATG 
C)  UAC 
D)  AUG 
E)  CGT 
A)  TAC 
B)  ATG 
C)  UAC 
D)  AUG 
E)  CGT

Question 20

In eukaryotes,most translation takes place in or on the

Accepted Answer

A)  nucleus. 
B)  rough endoplasmic reticulum. 
C)  smooth endoplasmic reticulum. 
D)  cytoplasm. 
E)  Golgi bodies. 
A)  nucleus. 
B)  rough endoplasmic reticulum. 
C)  smooth endoplasmic reticulum. 
D)  cytoplasm. 
E)  Golgi bodies.

Exam 7: Gene Expression and Control

For eukaryotes,transcription takes place in the

Which of the following is an action of ricin?

Frameshift mutations may involve

What are the non-coding segments of DNA called?

Of all the different codons that exist,three of them

Heritable changes in gene expression not due to changes in DNA sequences is termed

When you miss a class and copy a fellow student's class notes,it is analogous to

How many different amino acids make up proteins?

A ribosome contains

Which of the following is a master gene that controls eye development?

Of the nucleic acids listed below,which is most like a cookbook in its function?

How many bases change during DNA replication?

In transcription,

Which of the following is NOT true of the genetic code?

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

____ are involved in the regulation of gene expression.

If an anticodon was AUG,what would the corresponding nucleotides on DNA be?

In eukaryotes,most translation takes place in or on the

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