Question 1

Can the PCR technique be used to copy an entire chromosome all at once?

Accepted Answer

A)  No, only the genes would be copied. 
B)  No, the PCR machine can only copy fragments of DNA. 
C)  Yes, that is its primary function. 
A)  No, only the genes would be copied. 
B)  No, the PCR machine can only copy fragments of DNA. 
C)  Yes, that is its primary function.

Question 2

How many nucleotides are required to code for 10 amino acids?

Accepted Answer

A)  3 
B)  10 
C)  20 
D)  30 
A)  3 
B)  10 
C)  20 
D)  30

Question 3

Barr bodies are associated with ________.

Accepted Answer

A)  signal transduction 
B)  X chromosome inactivation 
C)  frameshift mutations 
D)  proto-oncogenes 
A)  signal transduction 
B)  X chromosome inactivation 
C)  frameshift mutations 
D)  proto-oncogenes

Question 4

When is cell-to-cell communication particularly important in regulating gene expression?

Accepted Answer

A)  During mitosis 
B)  During meiosis 
C)  During embryonic development 
D)  During replication 
A)  During mitosis 
B)  During meiosis 
C)  During embryonic development 
D)  During replication

Question 5

What is the main cause of cancer?

Accepted Answer

A)  DNA replication no longer working properly 
B)  Exposure to carcinogens in the environment 
C)  Old age, during which the cells of the body no longer work properly 
D)  We do not currently know the main cause of cancer. 
A)  DNA replication no longer working properly 
B)  Exposure to carcinogens in the environment 
C)  Old age, during which the cells of the body no longer work properly 
D)  We do not currently know the main cause of cancer.

Question 6

Where does translation occur in eukaryotes?

Accepted Answer

A)  In the nucleus only 
B)  Both in the nucleus and in the cytoplasm 
C)  In the cytoplasm only 
D)  In neither the nucleus nor the cytoplasm 
A)  In the nucleus only 
B)  Both in the nucleus and in the cytoplasm 
C)  In the cytoplasm only 
D)  In neither the nucleus nor the cytoplasm

Question 7

Three of the following statements are correct.Identify the statement that is not correct regarding genetically modified organisms.

Accepted Answer

A)  There are no risks associated with GM crops. 
B)  GM crops have been produced with increased nutrition. 
C)  GM crops have been produced that are disease resistant. 
D)  GM animals are not in our food supply. 
A)  There are no risks associated with GM crops. 
B)  GM crops have been produced with increased nutrition. 
C)  GM crops have been produced that are disease resistant. 
D)  GM animals are not in our food supply.

Question 8

Which of the following statements is incorrect regarding DNA and RNA?

Accepted Answer

A)  They each contain a slightly different sugar molecule. 
B)  DNA is double stranded, and RNA is a single strand. 
C)  They are found in different locations in the cell. 
D)  One of the bases is different. 
E)  All of the above are correct. 
A)  They each contain a slightly different sugar molecule. 
B)  DNA is double stranded, and RNA is a single strand. 
C)  They are found in different locations in the cell. 
D)  One of the bases is different. 
E)  All of the above are correct.

Question 9

The signal transduction pathway allows ________.

Accepted Answer

A)  one cell to regulate the gene expression of another cell 
B)  a cell to repair damage to its DNA 
C)  genes from one organism to be inserted into the nucleus of another organism's cells 
D)  whole genomes to be sequenced 
A)  one cell to regulate the gene expression of another cell 
B)  a cell to repair damage to its DNA 
C)  genes from one organism to be inserted into the nucleus of another organism's cells 
D)  whole genomes to be sequenced

Question 10

If the codon is AAA,what is the complementary anticodon?

Accepted Answer

A)  UUU 
B)  TTT 
C)  AAA 
D)  CCC 
A)  UUU 
B)  TTT 
C)  AAA 
D)  CCC

Question 11

Which genes are responsible for your overall structure,such as how many legs you have and where they develop?

Accepted Answer

A)  Oncogenes 
B)  Proto-oncogenes 
C)  Growth factor genes 
D)  Homeotic genes 
A)  Oncogenes 
B)  Proto-oncogenes 
C)  Growth factor genes 
D)  Homeotic genes

Question 12

Can one gene make different proteins?

Accepted Answer

A)  Yes, by splicing the resulting mRNA differently (i.e., removing different exons) 
B)  Yes, by modifying the original DNA 
C)  No, because one gene can code for only a single protein 
D)  No, because genes do not make proteins 
A)  Yes, by splicing the resulting mRNA differently (i.e., removing different exons) 
B)  Yes, by modifying the original DNA 
C)  No, because one gene can code for only a single protein 
D)  No, because genes do not make proteins

Question 13

According to the base pairing rules of DNA,if the sequence of bases on one strand was AGGCTTA,what would be the sequence of bases on the complementary strand?

Accepted Answer

A)  AGGCTTA 
B)  ATTCGGA 
C)  CGGATTC 
D)  TCCGAAT 
A)  AGGCTTA 
B)  ATTCGGA 
C)  CGGATTC 
D)  TCCGAAT

Question 14

What is a "benign" tumor?

Accepted Answer

A)  A mass of cancerous cells 
B)  A single mutated cell that could potentially develop into cancer 
C)  A mass of cells that grows out of control and spreads to other tissues 
D)  A mass of cells that grows out of control but remains at the site of origin 
A)  A mass of cancerous cells 
B)  A single mutated cell that could potentially develop into cancer 
C)  A mass of cells that grows out of control and spreads to other tissues 
D)  A mass of cells that grows out of control but remains at the site of origin

Question 15

Restriction enzymes were originally isolated from bacteria,which used them to protect themselves from viruses.How might a restriction enzyme defeat a virus?

Accepted Answer

Viruses infect cells by inserting their

Question 16

The PCR technique doubles the amount of DNA in a sample in each cycle.If you started the PCR technique with two fragments of double-stranded DNA,calculate how many double-stranded DNA fragments you would you have after four cycles.

Accepted Answer

A)  8 
B)  16 
C)  32 
D)  64 
A)  8 
B)  16 
C)  32 
D)  64

Question 17

What does "transfer RNA" actually transfer?

Accepted Answer

A)  Ribosome 
B)  Codons 
C)  Amino acids 
D)  Transcripts 
A)  Ribosome 
B)  Codons 
C)  Amino acids 
D)  Transcripts

Question 18

The spread of cancer cells from their site of origin to sites distant in the body is called ________.

Accepted Answer

A)  metastasis 
B)  mitosis 
C)  growth 
D)  transformation 
A)  metastasis 
B)  mitosis 
C)  growth 
D)  transformation

Question 19

What is the name of the enzyme that builds cDNA out of mRNA?

Accepted Answer

A)  DNA polymerase 
B)  RNA polymerase 
C)  Reverse transcriptase 
D)  DNA helicase 
A)  DNA polymerase 
B)  RNA polymerase 
C)  Reverse transcriptase 
D)  DNA helicase

Question 20

What is a gene?

Accepted Answer

A)  A discrete sequence of DNA nucleotides 
B)  A section of DNA that codes for one or more proteins 
C)  A section of DNA that codes for a portion of a protein 
D)  All of these and more are part of the expanding definition of a gene. 
A)  A discrete sequence of DNA nucleotides 
B)  A section of DNA that codes for one or more proteins 
C)  A section of DNA that codes for a portion of a protein 
D)  All of these and more are part of the expanding definition of a gene.

Can the PCR technique be used to copy an entire chromosome all at once?

How many nucleotides are required to code for 10 amino acids?

Barr bodies are associated with ________.

When is cell-to-cell communication particularly important in regulating gene expression?

What is the main cause of cancer?

Where does translation occur in eukaryotes?

Three of the following statements are correct.Identify the statement that is not correct regarding genetically modified organisms.

Which of the following statements is incorrect regarding DNA and RNA?

The signal transduction pathway allows ________.

If the codon is AAA,what is the complementary anticodon?

Which genes are responsible for your overall structure,such as how many legs you have and where they develop?

Can one gene make different proteins?

According to the base pairing rules of DNA,if the sequence of bases on one strand was AGGCTTA,what would be the sequence of bases on the complementary strand?

What is a "benign" tumor?

Restriction enzymes were originally isolated from bacteria,which used them to protect themselves from viruses.How might a restriction enzyme defeat a virus?

The PCR technique doubles the amount of DNA in a sample in each cycle.If you started the PCR technique with two fragments of double-stranded DNA,calculate how many double-stranded DNA fragments you would you have after four cycles.

What does "transfer RNA" actually transfer?

The spread of cancer cells from their site of origin to sites distant in the body is called ________.

What is the name of the enzyme that builds cDNA out of mRNA?

What is a gene?

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

Can the PCR technique be used to copy an entire chromosome all at once?

How many nucleotides are required to code for 10 amino acids?

Barr bodies are associated with ________.

When is cell-to-cell communication particularly important in regulating gene expression?

What is the main cause of cancer?

Where does translation occur in eukaryotes?

Three of the following statements are correct.Identify the statement that is not correct regarding genetically modified organisms.

Which of the following statements is incorrect regarding DNA and RNA?

The signal transduction pathway allows ________.

If the codon is AAA,what is the complementary anticodon?

Which genes are responsible for your overall structure,such as how many legs you have and where they develop?

Can one gene make different proteins?

According to the base pairing rules of DNA,if the sequence of bases on one strand was AGGCTTA,what would be the sequence of bases on the complementary strand?

What is a "benign" tumor?

Restriction enzymes were originally isolated from bacteria,which used them to protect themselves from viruses.How might a restriction enzyme defeat a virus?

The PCR technique doubles the amount of DNA in a sample in each cycle.If you started the PCR technique with two fragments of double-stranded DNA,calculate how many double-stranded DNA fragments you would you have after four cycles.

What does "transfer RNA" actually transfer?

The spread of cancer cells from their site of origin to sites distant in the body is called ________.

What is the name of the enzyme that builds cDNA out of mRNA?

What is a gene?

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