Question 1

What are carcinogens?

Accepted Answer

A) Physical or chemical factors that can lead to mutations causing cancer 
B) The only source of mutations in cells 
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) The only source of mutations in cells 
C) Errors during DNA replication 
D) Chemical factors that can treat cancer

Question 2

What does it mean when we say a gene is "turned off"?

Accepted Answer

A) The gene is no longer working properly. 
B) The gene cannot be transcribed and translated into a protein. 
C) The gene has a mutation. 
D) The gene is now activated. 
A) The gene is no longer working properly. 
B) The gene cannot be transcribed and translated into a protein. 
C) The gene has a mutation. 
D) The gene is now activated.

Question 3

Explain the basic mechanism CRISPR in DNA manipulation

Accepted Answer

CRISPR allows the nucleotide sequence of

Question 4

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 5

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. 
C) No, genes make about 25% of our DNA 
D) No, genes make about 50% 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. 
C) No, genes make about 25% of our DNA 
D) No, genes make about 50% of our DNA

Question 6

A codon is ________.

Accepted Answer

A) three nucleotides of DNA that code for an amino acid 
B) three nucleotides of RNA that code for an amino acid 
C) the section of DNA that codes for a protein 
D) the section of RNA that codes for a protein 
A) three nucleotides of DNA that code for an amino acid 
B) three nucleotides of RNA that code for an amino acid 
C) the section of DNA that codes for a protein 
D) the section of RNA that codes for a protein

Question 7

A collection of cloned DNA fragments representing an organism's entire genome is called a ________.

Accepted Answer

A) transgenic assembly 
B) genomic library 
C) clonal anthology 
D) complementary DNA collection 
A) transgenic assembly 
B) genomic library 
C) clonal anthology 
D) complementary DNA collection

Question 8

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

Question 9

How does a cell typically know when to divide?

Accepted Answer

A) Cells have an internal clock and divide only when they reach a certain age. 
B) Tumor suppressor genes code for growth factor proteins that initiate cell division. 
C) Proto-oncogenes code for growth factor proteins that initiate cell division. 
D) Oncogenes code for growth factor proteins that initiate cell division. 
A) Cells have an internal clock and divide only when they reach a certain age. 
B) Tumor suppressor genes code for growth factor proteins that initiate cell division. 
C) Proto-oncogenes code for growth factor proteins that initiate cell division. 
D) Oncogenes code for growth factor proteins that initiate cell division.

Question 10

What type of mutation leads to a frameshift in the reading of DNA?

Accepted Answer

A) All point mutations 
B) Insertions only 
C) Deletions only 
D) Both insertions and deletions 
A) All point mutations 
B) Insertions only 
C) Deletions only 
D) Both insertions and deletions

Question 11

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 12

What does "transfer RNA" actually transfer?

Accepted Answer

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

Question 13

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

Question 14

DNA profiling relies on an individual's ________, no two of which are the same between different people, except identical twins.

Accepted Answer

A) unique set of genes 
B) unique mRNA sequences 
C) unique set of short tandem repeats within DNA 
D) unique fingerprints 
A) unique set of genes 
B) unique mRNA sequences 
C) unique set of short tandem repeats within DNA 
D) unique fingerprints

Question 15

Which of the following is not a modification to the mRNA before leaving the nucleus?

Accepted Answer

A) Intron removal 
B) Promoter binding 
C) End capping 
D) Exon splicing 
A) Intron removal 
B) Promoter binding 
C) End capping 
D) Exon splicing

Question 16

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

Accepted Answer

Chemotherapy involves the administration

Question 17

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

What are carcinogens?

What does it mean when we say a gene is "turned off"?

Explain the basic mechanism CRISPR in DNA manipulation

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

Is most of our DNA made up of genes?

A codon is ________.

A collection of cloned DNA fragments representing an organism's entire genome is called a ________.

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

How does a cell typically know when to divide?

What type of mutation leads to a frameshift in the reading of DNA?

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

What does "transfer RNA" actually transfer?

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

DNA profiling relies on an individual's ________, no two of which are the same between different people, except identical twins.

Which of the following is not a modification to the mRNA before leaving the nucleus?

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

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

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

What are carcinogens?

What does it mean when we say a gene is "turned off"?

Explain the basic mechanism CRISPR in DNA manipulation

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

Is most of our DNA made up of genes?

A codon is ________.

A collection of cloned DNA fragments representing an organism's entire genome is called a ________.

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

How does a cell typically know when to divide?

What type of mutation leads to a frameshift in the reading of DNA?

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

What does "transfer RNA" actually transfer?

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

DNA profiling relies on an individual's ________, no two of which are the same between different people, except identical twins.

Which of the following is not a modification to the mRNA before leaving the nucleus?

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

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

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