Question 1

What is the ultimate source of all diversity?

Accepted Answer

A) natural selection 
B) sexual recombination 
C) meiosis 
D) mutation 
A) natural selection 
B) sexual recombination 
C) meiosis 
D) mutation

Question 2

Scientific research companies sell kits that allow researchers to produce proteins in test tubes via a process known as "in vitro translation." Which one of following components is NOT needed in these kits?

Accepted Answer

A) amino acids 
B) transfer RNA 
C) DNA 
D) ribosomes 
A) amino acids 
B) transfer RNA 
C) DNA 
D) ribosomes

Question 3

The RNA that is translated into a polypeptide is ________ RNA.

Accepted Answer

A) viral 
B) ribosomal 
C) transfer 
D) messenger 
A) viral 
B) ribosomal 
C) transfer 
D) messenger

Question 4

Mad cow disease is caused by

Accepted Answer

A) a retrovirus similar to HIV. 
B) an enveloped virus. 
C) small circular RNA molecules called viroids. 
D) infectious proteins called prions. 
A) a retrovirus similar to HIV. 
B) an enveloped virus. 
C) small circular RNA molecules called viroids. 
D) infectious proteins called prions.

Question 5

DNA replication ________.

Accepted Answer

A) is a slow process that results in virtually no errors 
B) requires DNA polymerase and RNA polymerase 
C) is a very fast process that results in numerous errors 
D) requires the cooperation of over a dozen enzymes and other proteins 
A) is a slow process that results in virtually no errors 
B) requires DNA polymerase and RNA polymerase 
C) is a very fast process that results in numerous errors 
D) requires the cooperation of over a dozen enzymes and other proteins

Question 6

Where is translation accomplished?

Accepted Answer

A) lysosomes 
B) smooth endoplasmic reticulum 
C) ribosomes 
D) nucleoli 
A) lysosomes 
B) smooth endoplasmic reticulum 
C) ribosomes 
D) nucleoli

Question 7

Transcription is the ________.

Accepted Answer

A) manufacture of a strand of RNA complementary to a strand of DNA 
B) manufacture of two new DNA double helices that are identical to an old DNA double helix 
C) modification of a strand of RNA prior to the manufacture of a protein 
D) manufacture of a protein based on information carried by RNA 
A) manufacture of a strand of RNA complementary to a strand of DNA 
B) manufacture of two new DNA double helices that are identical to an old DNA double helix 
C) modification of a strand of RNA prior to the manufacture of a protein 
D) manufacture of a protein based on information carried by RNA

Question 8

Thymine and cytosine differ from adenine and guanine in that ________.

Accepted Answer

A) thymine and cytosine are single-ring structures,whereas adenine and guanine are double-ring structures 
B) thymine and cytosine are only found in DNA,whereas adenine and guanine are found in both DNA and RNA 
C) thymine and cytosine are only found in DNA,whereas adenine and guanine are only found in RNA 
D) thymine and cytosine are larger nitrogenous bases 
A) thymine and cytosine are single-ring structures,whereas adenine and guanine are double-ring structures 
B) thymine and cytosine are only found in DNA,whereas adenine and guanine are found in both DNA and RNA 
C) thymine and cytosine are only found in DNA,whereas adenine and guanine are only found in RNA 
D) thymine and cytosine are larger nitrogenous bases

Question 9

The CORRECT sequence of events occurring during transcription is ________.

Accepted Answer

A) splicing,capping,tailing 
B) initiation,elongation,termination 
C) tailing,capping,splicing 
D) elongation,initiation,termination 
A) splicing,capping,tailing 
B) initiation,elongation,termination 
C) tailing,capping,splicing 
D) elongation,initiation,termination

Question 10

The expressed (coding)regions of eukaryotic genes are called ________.

Accepted Answer

A) caps 
B) promoters 
C) exons 
D) introns 
A) caps 
B) promoters 
C) exons 
D) introns

Question 11

After replication,________.

Accepted Answer

A) each new DNA double helix consists of two old strands 
B) each new DNA double helix consists of one old strand and one new strand 
C) each new DNA double helix consists of two new strands 
D) one new DNA double helix consists of two old strands and the other new DNA double helix consists of two new strands 
A) each new DNA double helix consists of two old strands 
B) each new DNA double helix consists of one old strand and one new strand 
C) each new DNA double helix consists of two new strands 
D) one new DNA double helix consists of two old strands and the other new DNA double helix consists of two new strands

Question 12

Translation converts the information stored in ________ to ________.

Accepted Answer

A) DNA...RNA 
B) RNA...a polypeptide 
C) DNA...a polypeptide 
D) RNA...DNA 
A) DNA...RNA 
B) RNA...a polypeptide 
C) DNA...a polypeptide 
D) RNA...DNA

Question 13

Once viruses are detected,the number of viruses increases rapidly.This is because ________.

Accepted Answer

A) lysogeny produces large numbers of bacteriophages 
B) DNA viruses reproduce more rapidly than RNA viruses 
C) the host cell speeds the release process 
D) the viruses lyse the hosts to release mature viruses quickly in a short amount of time 
A) lysogeny produces large numbers of bacteriophages 
B) DNA viruses reproduce more rapidly than RNA viruses 
C) the host cell speeds the release process 
D) the viruses lyse the hosts to release mature viruses quickly in a short amount of time

Exam 10: The Structure and Function of Dna

What is the ultimate source of all diversity?

Scientific research companies sell kits that allow researchers to produce proteins in test tubes via a process known as "in vitro translation." Which one of following components is NOT needed in these kits?

The RNA that is translated into a polypeptide is ________ RNA.

Mad cow disease is caused by

DNA replication ________.

Where is translation accomplished?

Transcription is the ________.

Thymine and cytosine differ from adenine and guanine in that ________.

The CORRECT sequence of events occurring during transcription is ________.

The expressed (coding)regions of eukaryotic genes are called ________.

After replication,________.

Translation converts the information stored in ________ to ________.

Once viruses are detected,the number of viruses increases rapidly.This is because ________.

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Bodys Defenses

Hormones

Reproduction and Development

Nervous,Sensory,and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters

Translation converts the information stored in to .