Question 1

Cancer is ________.

Accepted Answer

A) uncontrolled cell growth 
B) any tumor in the body 
C) cells with proto-oncogene activated 
D) what happens when cells get old 
A) uncontrolled cell growth 
B) any tumor in the body 
C) cells with proto-oncogene activated 
D) what happens when cells get old A

Question 2

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 B

Question 3

If you know that a DNA double helix consists of 20 % adenine, what percentage of the DNA double helix is guanine (G)?

Accepted Answer

A) 20% 
B) 30% 
C) 80% 
D) There is not information to know 
A) 20% 
B) 30% 
C) 80% 
D) There is not information to know B

Question 4

Which enzyme is responsible for adding complementary DNA bases to an exposed DNA strand?

Accepted Answer

A) DNA helicase 
B) DNA polymerase 
C) DNA ligase 
D) DNA peptidase 
A) DNA helicase 
B) DNA polymerase 
C) DNA ligase 
D) DNA peptidase

Question 5

What do the letters D-N-A stand for?

Accepted Answer

A) Dioxyribonucleic acid 
B) Dioxyribonuclear acid 
C) Deoxyribonucleic acid 
D) Deoxyrobonuclear acid 
A) Dioxyribonucleic acid 
B) Dioxyribonuclear acid 
C) Deoxyribonucleic acid 
D) Deoxyrobonuclear acid

Question 6

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 7

Which of the following statements is correct regarding promoters?

Accepted Answer

A) Promoters are regions of DNA that indicates the start of a gene 
B) Promoters are regions of DNA where RNA polymerase can bind to start transcripton 
C) Promoters act as a "start here" signal to help control gene expression 
D) All of the above are correct 
A) Promoters are regions of DNA that indicates the start of a gene 
B) Promoters are regions of DNA where RNA polymerase can bind to start transcripton 
C) Promoters act as a "start here" signal to help control gene expression 
D) All of the above are correct

Question 8

What is different from one DNA nucleotide to the next?

Accepted Answer

A) The sugar molecule 
B) The phosphate group 
C) The base 
D) The protein 
A) The sugar molecule 
B) The phosphate group 
C) The base 
D) The protein

Question 9

If the base sequence of template strand reads GCCATTAC, what is the base sequence of the mRNA?

Accepted Answer

A) CGGUAAUG 
B) CGGTAATG 
C) CGGTUUTG 
D) GCCAUUAC 
A) CGGUAAUG 
B) CGGTAATG 
C) CGGTUUTG 
D) GCCAUUAC

Question 10

The small circular molecules of DNA commonly found in bacteria are called ________.

Accepted Answer

A) chromatids 
B) plastids 
C) loops 
D) plasmids 
A) chromatids 
B) plastids 
C) loops 
D) plasmids

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

How is DNA linked to the production of proteins?

Accepted Answer

A) Proteins hold the instructions on how to make DNA. 
B) DNA is the end point of protein production that allows cells to finish making proteins. 
C) DNA holds the instructions for the cells on how to make proteins. 
D) DNA is not linked to the production of proteins. 
A) Proteins hold the instructions on how to make DNA. 
B) DNA is the end point of protein production that allows cells to finish making proteins. 
C) DNA holds the instructions for the cells on how to make proteins. 
D) DNA is not linked to the production of proteins.

Question 13

What is the correct sequence of events during translation?

Accepted Answer

A) Elongation, initiation, termination 
B) Initiation, elongation, termination 
C) Termination, elongation, initiation 
D) Initiation, elongation, initiation 
A) Elongation, initiation, termination 
B) Initiation, elongation, termination 
C) Termination, elongation, initiation 
D) Initiation, elongation, initiation

Question 14

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. 
D) There is not enough information provided to 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. 
D) There is not enough information provided to answer

Question 15

Why does transcription occur in the nucleus and not in the cytoplasm in eukaryotes?

Accepted Answer

A) RNA cannot exist in the cytoplasm. 
B) DNA cannot leave the nucleus. 
C) Ribosomes cannot leave the nucleus. 
D) Codons are only found in the nucleus. 
A) RNA cannot exist in the cytoplasm. 
B) DNA cannot leave the nucleus. 
C) Ribosomes cannot leave the nucleus. 
D) Codons are only found in the nucleus.

Question 16

What are the three components of a DNA nucleotide?

Accepted Answer

A) A sugar, a phosphate and a base 
B) A sugar, a base, and a polypeptide 
C) A sugar, a phosphate, and a peptide 
D) A phosphate, a base, and a polypeptide 
A) A sugar, a phosphate and a base 
B) A sugar, a base, and a polypeptide 
C) A sugar, a phosphate, and a peptide 
D) A phosphate, a base, and a polypeptide

Question 17

What is the role of primers in the PCR techniques?

Accepted Answer

A) To separate strands of double-stranded DNA 
B) To add free nucleotides to the newly formed DNA molecule 
C) To allow single strands of DNA to bind together 
D) To target specific areas of DNA 
A) To separate strands of double-stranded DNA 
B) To add free nucleotides to the newly formed DNA molecule 
C) To allow single strands of DNA to bind together 
D) To target specific areas of DNA

Question 18

Describe what happens in signal transduction, both on the cell membrane and inside the cell.Make sure to explain the link between signal transduction and protein synthesis in your answer.

Accepted Answer

Signals can be send between cells by usi

Question 19

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 20

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).

Cancer is ________.

Barr bodies are associated with ________.

If you know that a DNA double helix consists of 20 % adenine, what percentage of the DNA double helix is guanine (G)?

Which enzyme is responsible for adding complementary DNA bases to an exposed DNA strand?

What do the letters D-N-A stand for?

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

Which of the following statements is correct regarding promoters?

What is different from one DNA nucleotide to the next?

If the base sequence of template strand reads GCCATTAC, what is the base sequence of the mRNA?

The small circular molecules of DNA commonly found in bacteria are called ________.

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

How is DNA linked to the production of proteins?

What is the correct sequence of events during translation?

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

Why does transcription occur in the nucleus and not in the cytoplasm in eukaryotes?

What are the three components of a DNA nucleotide?

What is the role of primers in the PCR techniques?

Describe what happens in signal transduction, both on the cell membrane and inside the cell.Make sure to explain the link between signal transduction and protein synthesis in your answer.

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

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

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

Biology The Core: Appendix

Filters

Exam 6: DNA: The Molecule of Life

Cancer is ________.

Barr bodies are associated with ________.

If you know that a DNA double helix consists of 20 % adenine, what percentage of the DNA double helix is guanine (G)?

Which enzyme is responsible for adding complementary DNA bases to an exposed DNA strand?

What do the letters D-N-A stand for?

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

Which of the following statements is correct regarding promoters?

What is different from one DNA nucleotide to the next?

If the base sequence of template strand reads GCCATTAC, what is the base sequence of the mRNA?

The small circular molecules of DNA commonly found in bacteria are called ________.

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

How is DNA linked to the production of proteins?

What is the correct sequence of events during translation?

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

Why does transcription occur in the nucleus and not in the cytoplasm in eukaryotes?

What are the three components of a DNA nucleotide?

What is the role of primers in the PCR techniques?

Describe what happens in signal transduction, both on the cell membrane and inside the cell.Make sure to explain the link between signal transduction and protein synthesis in your answer.

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

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

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

Biology The Core: Appendix

Filters