Question 1

Why can a person who is unable to produce insulin be successfully treated with insulin derived from genetically modified bacteria?

Accepted Answer

A)  Typical bacterial insulin is exactly the same as human insulin. 
B)  The gene that produces insulin in humans was inserted into the bacteria where it continues to produce human insulin. 
C)  The insulin-producing gene of bacteria was altered to have the same base sequence as the human counterpart and now produces the human version of insulin. 
D)  Bacterial insulin is similar enough to human insulin to serve the same purpose. 
A)  Typical bacterial insulin is exactly the same as human insulin. 
B)  The gene that produces insulin in humans was inserted into the bacteria where it continues to produce human insulin. 
C)  The insulin-producing gene of bacteria was altered to have the same base sequence as the human counterpart and now produces the human version of insulin. 
D)  Bacterial insulin is similar enough to human insulin to serve the same purpose.

Question 2

How is translation initiated?

Accepted Answer

A)  DNA helicase binds to the origins of replication. 
B)  Two ribosomal subunits bind to the mRNA transcript. 
C)  RNA polymerase binds to the promoter sequence. 
D)  Two ribosomal subunits bind to the DNA sequence. 
A)  DNA helicase binds to the origins of replication. 
B)  Two ribosomal subunits bind to the mRNA transcript. 
C)  RNA polymerase binds to the promoter sequence. 
D)  Two ribosomal subunits bind to the DNA sequence.

Question 3

When might a frameshift or nonsense mutation not result in a completely defective protein?

Accepted Answer

A)  When the mutation occurs in one of the very last codons 
B)  When the mutation occurs in one of the first codons 
C)  When a frameshift is balanced out by a nonsense mutation 
D)  When the mutation occurs in an exon region 
A)  When the mutation occurs in one of the very last codons 
B)  When the mutation occurs in one of the first codons 
C)  When a frameshift is balanced out by a nonsense mutation 
D)  When the mutation occurs in an exon region

Question 4

Which process results in the creation of mRNA?

Accepted Answer

A)  Replication 
B)  Transcription 
C)  Translation 
D)  All of the above 
A)  Replication 
B)  Transcription 
C)  Translation 
D)  All of the above

Question 5

What separates the strands of DNA in the polymerase chain reaction (PCR)technique?

Accepted Answer

A)  Restriction enzymes 
B)  Helicase 
C)  Centrifuge 
D)  Heat 
A)  Restriction enzymes 
B)  Helicase 
C)  Centrifuge 
D)  Heat

Question 6

How does chemotherapy kill cancer cells,and why might it also result in hair loss and nausea?

Accepted Answer

Chemotherapy involves the administration

Question 7

Genetically modified organisms that acquire genes from a different species are called ________ organisms.

Accepted Answer

A)  mutant 
B)  synthetic 
C)  cloned 
D)  transgenic 
A)  mutant 
B)  synthetic 
C)  cloned 
D)  transgenic

Question 8

How does a scientist get the corrected version of a gene into the cells of a gene therapy patient?

Accepted Answer

A)  It is delivered with a modified virus. 
B)  It is directly injected with a microscopic hypodermic needle. 
C)  It is attached to a food molecule, such as glucose and is then ingested by the individual. 
D)  It is attached to the surface of microscopic beads and is then shot into the individual (i.e., shotgun method). 
A)  It is delivered with a modified virus. 
B)  It is directly injected with a microscopic hypodermic needle. 
C)  It is attached to a food molecule, such as glucose and is then ingested by the individual. 
D)  It is attached to the surface of microscopic beads and is then shot into the individual (i.e., shotgun method).

Question 9

Are there ways to prevent cancer?

Accepted Answer

A)  No, cancer cannot be prevented; it can only be treated. 
B)  No, cancer cannot be prevented or treated. 
C)  Yes, there are many ways cancer can be prevented, including through a healthy diet and exercise. 
D)  Yes, cancer can be prevented, but only with intense exercise. 
A)  No, cancer cannot be prevented; it can only be treated. 
B)  No, cancer cannot be prevented or treated. 
C)  Yes, there are many ways cancer can be prevented, including through a healthy diet and exercise. 
D)  Yes, cancer can be prevented, but only with intense exercise.

Question 10

If DNA directs the production of RNA,what does RNA make?

Accepted Answer

A)  RNA makes proteins. 
B)  RNA makes more DNA. 
C)  RNA makes membranes. 
D)  RNA makes hereditary molecules. 
A)  RNA makes proteins. 
B)  RNA makes more DNA. 
C)  RNA makes membranes. 
D)  RNA makes hereditary molecules.

Question 11

In what way(s)can mRNAs be processed?

Accepted Answer

A)  By adding caps and tails to the ends of the mRNAs 
B)  By removing the introns (the noncoding regions) of the mRNAs 
C)  By splicing the exons (the coding regions) of the mRNAs in different ways 
D)  All of the above 
A)  By adding caps and tails to the ends of the mRNAs 
B)  By removing the introns (the noncoding regions) of the mRNAs 
C)  By splicing the exons (the coding regions) of the mRNAs in different ways 
D)  All of the above

Question 12

The genetic code is ________.

Accepted Answer

A)  our DNA - what makes us who we are 
B)  our genome 
C)  the complementary base-pairing of A going with T and C going with G 
D)  what allows codons to be translated into amino acids 
A)  our DNA - what makes us who we are 
B)  our genome 
C)  the complementary base-pairing of A going with T and C going with G 
D)  what allows codons to be translated into amino acids

Question 13

How would the cDNA created in a lab compare to the original DNA?

Accepted Answer

A)  It would contain only the genes that were producing proteins in the cell at the time the cDNA was created. 
B)  It would be identical to the original DNA. 
C)  It would be a single strand instead of the original double-stranded DNA. 
D)  It would be circular, similar to bacterial DNA. 
A)  It would contain only the genes that were producing proteins in the cell at the time the cDNA was created. 
B)  It would be identical to the original DNA. 
C)  It would be a single strand instead of the original double-stranded DNA. 
D)  It would be circular, similar to bacterial DNA.

Question 14

Where does the bond form that binds one strand of DNA to its other strand?

Accepted Answer

A)  Between the sugar and the base 
B)  Between the phosphate group and the sugar 
C)  Between the bases 
D)  Between the phosphate groups 
A)  Between the sugar and the base 
B)  Between the phosphate group and the sugar 
C)  Between the bases 
D)  Between the phosphate groups

Question 15

What is recombinant DNA?

Accepted Answer

A)  A segment of DNA containing sequences from two different sources 
B)  DNA that comes from plasmids 
C)  DNA that can no longer replicate 
D)  DNA that is circular 
A)  A segment of DNA containing sequences from two different sources 
B)  DNA that comes from plasmids 
C)  DNA that can no longer replicate 
D)  DNA that is circular

Question 16

DNA helicase breaks which type of bond in the DNA molecule?

Accepted Answer

A)  Covalent bonds 
B)  Hydrogen bonds 
C)  Ionic bonds 
D)  Peptide bonds 
A)  Covalent bonds 
B)  Hydrogen bonds 
C)  Ionic bonds 
D)  Peptide bonds

Question 17

Which nucleic acid acts like an enzyme,stabilizing and orienting different molecules to facilitate the formation of bonds between them?

Accepted Answer

A)  DNA 
B)  rRNA 
C)  tRNA 
D)  mRNA 
A)  DNA 
B)  rRNA 
C)  tRNA 
D)  mRNA

Question 18

Is most of our DNA made up of genes?

Accepted Answer

A)  Yes, the vast majority of human DNA consists of genes. 
B)  No, genes make up only 1.5% of our DNA. 
A)  Yes, the vast majority of human DNA consists of genes. 
B)  No, genes make up only 1.5% of our DNA.

Question 19

What are carcinogens?

Accepted Answer

A)  Physical or chemical factors that can lead to mutations causing cancer 
B)  All mutagens 
C)  Errors during DNA replication 
D)  Chemical factors that can treat cancer 
A)  Physical or chemical factors that can lead to mutations causing cancer 
B)  All mutagens 
C)  Errors during DNA replication 
D)  Chemical factors that can treat cancer

Question 20

Gene cloning is used to ________.

Accepted Answer

A)  make other organisms, such as Dolly, the first cloned sheep 
B)  produce large quantities of human proteins 
C)  cure genetic disorders 
D)  help cure cancer 
A)  make other organisms, such as Dolly, the first cloned sheep 
B)  produce large quantities of human proteins 
C)  cure genetic disorders 
D)  help cure cancer

Why can a person who is unable to produce insulin be successfully treated with insulin derived from genetically modified bacteria?

How is translation initiated?

When might a frameshift or nonsense mutation not result in a completely defective protein?

Which process results in the creation of mRNA?

What separates the strands of DNA in the polymerase chain reaction (PCR)technique?

How does chemotherapy kill cancer cells,and why might it also result in hair loss and nausea?

Genetically modified organisms that acquire genes from a different species are called ________ organisms.

How does a scientist get the corrected version of a gene into the cells of a gene therapy patient?

Are there ways to prevent cancer?

If DNA directs the production of RNA,what does RNA make?

In what way(s)can mRNAs be processed?

The genetic code is ________.

How would the cDNA created in a lab compare to the original DNA?

Where does the bond form that binds one strand of DNA to its other strand?

What is recombinant DNA?

DNA helicase breaks which type of bond in the DNA molecule?

Which nucleic acid acts like an enzyme,stabilizing and orienting different molecules to facilitate the formation of bonds between them?

Is most of our DNA made up of genes?

What are carcinogens?

Gene cloning is used to ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 6: Dna: the Molecule of Life

Why can a person who is unable to produce insulin be successfully treated with insulin derived from genetically modified bacteria?

How is translation initiated?

When might a frameshift or nonsense mutation not result in a completely defective protein?

Which process results in the creation of mRNA?

What separates the strands of DNA in the polymerase chain reaction (PCR)technique?

How does chemotherapy kill cancer cells,and why might it also result in hair loss and nausea?

Genetically modified organisms that acquire genes from a different species are called ________ organisms.

How does a scientist get the corrected version of a gene into the cells of a gene therapy patient?

Are there ways to prevent cancer?

If DNA directs the production of RNA,what does RNA make?

In what way(s)can mRNAs be processed?

The genetic code is ________.

How would the cDNA created in a lab compare to the original DNA?

Where does the bond form that binds one strand of DNA to its other strand?

What is recombinant DNA?

DNA helicase breaks which type of bond in the DNA molecule?

Which nucleic acid acts like an enzyme,stabilizing and orienting different molecules to facilitate the formation of bonds between them?

Is most of our DNA made up of genes?

What are carcinogens?

Gene cloning is used to ________.

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters