Question 1

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 2

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 3

Gel electrophoresis separates DNA fragments according to their ________.

Accepted Answer

A) length 
B) charge 
C) polarity 
D) base sequences 
A) length 
B) charge 
C) polarity 
D) base sequences

Question 4

What is gene regulation?

Accepted Answer

A) Mechanisms that turn on and off specific genes to change which proteins are made 
B) Mechanisms that regulate the replication of DNA 
C) Mechanisms that regulate which genes get copied 
D) Mechanisms that turn on and off mitosis in the cell cycle 
A) Mechanisms that turn on and off specific genes to change which proteins are made 
B) Mechanisms that regulate the replication of DNA 
C) Mechanisms that regulate which genes get copied 
D) Mechanisms that turn on and off mitosis in the cell cycle

Question 5

What is a terminator?

Accepted Answer

A) A promoter is a region of mRNA that is sliced out. 
B) A promoter is a region of DNA that marks the beginning of a gene. 
C) A promoter is a region of DNA that marks the end of a gene. 
D) A promoter is a region of mRNA where RNA polymerase binds. 
A) A promoter is a region of mRNA that is sliced out. 
B) A promoter is a region of DNA that marks the beginning of a gene. 
C) A promoter is a region of DNA that marks the end of a gene. 
D) A promoter is a region of mRNA where RNA polymerase binds.

Question 6

Which of the following is a type of treatment for cancer?

Accepted Answer

A) Chemotherapy 
B) Removing the tumor through surgery 
C) Removing the tumor through radiation therapy 
D) All of the above are ways that cancer can be treated 
A) Chemotherapy 
B) Removing the tumor through surgery 
C) Removing the tumor through radiation therapy 
D) All of the above are ways that cancer can be treated

Question 7

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 8

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 9

What part of a chromosome goes through transcription and translation?

Accepted Answer

A) Only genes go through transcription and translation. 
B) Only introns go through transcription and translation. 
C) Both introns and exons go through transcription and translation. 
D) All of the chromosome goes through transcription and translation. 
A) Only genes go through transcription and translation. 
B) Only introns go through transcription and translation. 
C) Both introns and exons go through transcription and translation. 
D) All of the chromosome goes through transcription and translation.

Question 10

The mighty chestnut tree once dominated many of our Appalachian forests but was decimated by an exotic fungus in the first part of the 20th century.A few small groves of trees still remain in isolated pockets, and living roots of some of the fallen ancient trees still try to send up new shoots.These shoots always die as soon as they are exposed to the fungus.How could chestnut trees be genetically modified to be resistant to the fungus and to grow again?

Accepted Answer

A gene from a resistant plant,

Question 11

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 12

What is the monomer of the DNA molecule?

Accepted Answer

A) Polynucleotide 
B) Monosaccharide 
C) Nucleotide 
D) Peptide 
A) Polynucleotide 
B) Monosaccharide 
C) Nucleotide 
D) Peptide

Question 13

Of whom is the baby a clone?

Accepted Answer

A) Egg donor 
B) DNA donor 
C) Surrogate mother 
D) It depends on whether it is male or female. 
A) Egg donor 
B) DNA donor 
C) Surrogate mother 
D) It depends on whether it is male or female.

Question 14

What are oncogenes?

Accepted Answer

A) Oncogenes are necessary genes that help regulate the cell cycle. 
B) Oncogenes are mutated proto-oncogenes. 
C) Oncogenes are mutated tumor-suppressor genes. 
D) Oncogenes are necessary genes that inhibit the cell cycle. 
A) Oncogenes are necessary genes that help regulate the cell cycle. 
B) Oncogenes are mutated proto-oncogenes. 
C) Oncogenes are mutated tumor-suppressor genes. 
D) Oncogenes are necessary genes that inhibit the cell cycle.

Question 15

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 16

Which of the following mutations can help lead to cancer?

Accepted Answer

A) Mutations to proto-oncogenes 
B) Mutations to tumor suppressor genes 
C) Mutations to growth factors 
D) All of the above would lead to cancer 
A) Mutations to proto-oncogenes 
B) Mutations to tumor suppressor genes 
C) Mutations to growth factors 
D) All of the above would lead to cancer

Question 17

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 are ways in which mRNAs can be processed 
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 are ways in which mRNAs can be processed

Question 18

Ribosomes ________.

Accepted Answer

A) translate mRNA into proteins 
B) transcribe DNA into mRNA 
C) are located inside the nucleus in eukaryotic cells 
D) are involved in making ATP for eukaryotic cells 
A) translate mRNA into proteins 
B) transcribe DNA into mRNA 
C) are located inside the nucleus in eukaryotic cells 
D) are involved in making ATP for eukaryotic cells

Question 19

Entire genes may be deleted, inverted, replicated, or even translocated to another chromosome.Explain how each one could potentially result in cancer.

Accepted Answer

A deletion of a tumor suppressor gene ma

Question 20

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

How is translation initiated?

What is recombinant DNA?

Gel electrophoresis separates DNA fragments according to their ________.

What is gene regulation?

What is a terminator?

Which of the following is a type of treatment for cancer?

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?

Where does translation occur in eukaryotes?

What part of a chromosome goes through transcription and translation?

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

What is the monomer of the DNA molecule?

Of whom is the baby a clone?

What are oncogenes?

What is a "benign" tumor?

Which of the following mutations can help lead to cancer?

In what way(s) can mRNAs be processed?

Ribosomes ________.

Entire genes may be deleted, inverted, replicated, or even translocated to another chromosome.Explain how each one could potentially result in cancer.

Which process results in the creation of mRNA?

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

How is translation initiated?

What is recombinant DNA?

Gel electrophoresis separates DNA fragments according to their ________.

What is gene regulation?

What is a terminator?

Which of the following is a type of treatment for cancer?

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?

Where does translation occur in eukaryotes?

What part of a chromosome goes through transcription and translation?

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

What is the monomer of the DNA molecule?

Of whom is the baby a clone?

What are oncogenes?

What is a "benign" tumor?

Which of the following mutations can help lead to cancer?

In what way(s) can mRNAs be processed?

Ribosomes ________.

Entire genes may be deleted, inverted, replicated, or even translocated to another chromosome.Explain how each one could potentially result in cancer.

Which process results in the creation of mRNA?

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