Question 1

The nitrogenous base uracil pairs with

Accepted Answer

A)  uracil. 
B)  thymine. 
C)  cytosine. 
D)  guanine. 
E)  adenine. 
A)  uracil. 
B)  thymine. 
C)  cytosine. 
D)  guanine. 
E)  adenine.

Question 2

All of the following are directly involved in translation EXCEPT

Accepted Answer

A)  mRNA. 
B)  amino acids. 
C)  ribosomes. 
D)  tRNA. 
E)  DNA. 
A)  mRNA. 
B)  amino acids. 
C)  ribosomes. 
D)  tRNA. 
E)  DNA.

Question 3

The function of the promoter is to signal the RNA polymerase

Accepted Answer

A)  where to start translating the DNA. 
B)  which strand of the DNA to read. 
C)  where to start transcribing the DNA. 
D)  where to add the first amino acid to the protein. 
A)  where to start translating the DNA. 
B)  which strand of the DNA to read. 
C)  where to start transcribing the DNA. 
D)  where to add the first amino acid to the protein.

Question 4

Which of the following molecules transfers information from the nucleus to the cytoplasm?

Accepted Answer

A)  mRNA 
B)  tRNA 
C)  DNA 
D)  Proteins 
E)  Lipids 
A)  mRNA 
B)  tRNA 
C)  DNA 
D)  Proteins 
E)  Lipids

Question 5

Which of the following binds to codons?

Accepted Answer

A)  Transfer RNA 
B)  Messenger RNA 
C)  RNA polymerase 
D)  DNA 
A)  Transfer RNA 
B)  Messenger RNA 
C)  RNA polymerase 
D)  DNA

Question 6

Each ribosome is specific for a particular type of protein.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following has the fewest nucleotides in its strand?

Accepted Answer

A)  Protein, having 40 amino acids 
B)  mRNA, having 75 nucleotides 
C)  Protein, with 2 polypeptides, each having 35 amino acids 
D)  mRNA, having 50 codons 
E)  mRNA, having 100 bases 
A)  Protein, having 40 amino acids 
B)  mRNA, having 75 nucleotides 
C)  Protein, with 2 polypeptides, each having 35 amino acids 
D)  mRNA, having 50 codons 
E)  mRNA, having 100 bases

Question 8

The process of converting the "message" of mRNA into a sequence of amino acids is called

Accepted Answer

A)  replication. 
B)  activation. 
C)  translation. 
D)  repression. 
E)  transcription. 
A)  replication. 
B)  activation. 
C)  translation. 
D)  repression. 
E)  transcription.

Question 9

The site of protein synthesis in the cytoplasm is the ribosome.

Accepted Answer

A) True 
 B)False

Question 10

Gene expression is a term that relates to

Accepted Answer

A)  how genes are passed from parent to offspring. 
B)  the karyotype of a chromosome set. 
C)  the unique set of genes in an individual. 
D)  the flow of genetic information from DNA to proteins. 
E)  DNA replication. 
A)  how genes are passed from parent to offspring. 
B)  the karyotype of a chromosome set. 
C)  the unique set of genes in an individual. 
D)  the flow of genetic information from DNA to proteins. 
E)  DNA replication.

Question 11

What is the total number of different possible combinations of bases in a codon?

Accepted Answer

A)  20 
B)  64 
C)  3 
D)  4 
A)  20 
B)  64 
C)  3 
D)  4

Question 12

Which of the following attaches to specific amino acids?

Accepted Answer

A)  DNA 
B)  Messenger RNA 
C)  RNA polymerase 
D)  Ribosomal RNA 
E)  Transfer RNA 
A)  DNA 
B)  Messenger RNA 
C)  RNA polymerase 
D)  Ribosomal RNA 
E)  Transfer RNA

Question 13

A transcription start signal is called a(n)

Accepted Answer

A)  initiation codon. 
B)  nonsense codon. 
C)  origin. 
D)  promoter. 
E)  start site. 
A)  initiation codon. 
B)  nonsense codon. 
C)  origin. 
D)  promoter. 
E)  start site.

Exam 13: Gene Expression and Regulation

The nitrogenous base uracil pairs with

All of the following are directly involved in translation EXCEPT

The function of the promoter is to signal the RNA polymerase

Which of the following molecules transfers information from the nucleus to the cytoplasm?

Which of the following binds to codons?

Each ribosome is specific for a particular type of protein.

Which of the following has the fewest nucleotides in its strand?

The process of converting the "message" of mRNA into a sequence of amino acids is called

The site of protein synthesis in the cytoplasm is the ribosome.

Gene expression is a term that relates to

What is the total number of different possible combinations of bases in a codon?

Which of the following attaches to specific amino acids?

A transcription start signal is called a(n)

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters