Question 1

Human DNA includes

Accepted Answer

A)   encoding RNA and regulatory sequences that control gene expression.
B)   genes that are transcribed but not translated.
C)   pseudogenes.
D)   remnants of old genes from ancestors.
E)   All answers are correct.

Question 2

All of the human genome encodes proteins.

Accepted Answer

A) True 
 B)False

Question 3

Transfer of transgenes from crop plants to wild relatives can render chemicals like glyphospate ineffective.

Accepted Answer

A) True 
 B)False  True

Question 4

Growth and development of a normal cell differs from a stem cell because

Accepted Answer

A)   normal cells do not specialize into stem cells.
B)   stem cells do not specialize into normal cells.
C)   stem cells are not found in adult organisms.
D)   mature stem cells do not contain DNA.
E)   mature normal cells do not contain DNA. A

Question 5

What are the possible effects of gene doping?

Accepted Answer

A)   encode for new or more proteins than previously existed in the cell
B)   boost the production of erythropoietin to stimulate red blood cell production
C)   make athletes better competitors
D)   result in negative effects in the body
E)   All answers are correct.

Question 6

The Taq ________ enzyme is used in polymerase chain reaction (PCR) because it remains stable at high temperatures.

Accepted Answer

A)   DNA polymerase
B)   RNA polymerase
C)   ribosomal RNA (rRN
A)  
D)   primase
E)   cytoskeleton

Question 7

DNA probes are typically labeled with a radioactive isotope or fluorescent tag to locate within the genome after binding.

Accepted Answer

A) True 
 B)False

Question 8

How can stem cells replace faulty cells in the body?

Accepted Answer

A)   Stem cells can be coaxed to differentiate into the needed specific cell type.
B)   Stem cells can mitotically divide, providing more stem cells to directly replace the faulty cells and their functions.
C)   Stem cells can meiotically divide, providing more stem cells to directly replace the faulty cells and their functions.
D)   Faulty cells can be coaxed to differentiate into stem cells and directly replace the faulty cells and their functions.
E)   Stem cells can directly serve as nerve or blood cells.

Question 9

How does DNA profiling detect genetic differences between individuals? It uses

Accepted Answer

A)   short tandem repeats and other variable parts of the genome.
B)   shared genetic sequences.
C)   entire genomes.
D)   detection of non-AGCT bases.
E)   only coding regions of the genome.

Question 10

A transgenic organism is an organism that receives all of its genes from only a single parent.

Accepted Answer

A) True 
 B)False

Question 11

98.5% of the human genome does not encode proteins.

Accepted Answer

A) True 
 B)False  True

Question 12

DNA technology can be used to determine how humans are related to other living organisms.

Accepted Answer

A) True 
 B)False

Question 13

Stem cell technology has the potential to

Accepted Answer

A)   produce any type of cell in the body.
B)   replace damaged cells after an injury.
C)   replace absent or incorrect cells resulting from a genetic disease.
D)   replace absent or incorrect cells resulting from a nongenetic disease.
E)   All answers are correct.

Question 14

DNA probes can be used to detect the alleles for

Accepted Answer

A)   cystic fibrosis.
B)   hemophilia.
C)   sickle cell disease.
D)   Tay-Sachs syndrome.
E)   All answers are correct.

Question 15

In cloning the sheep Dolly,a nucleus was implanted into an egg that had its nucleus removed.The result of this somatic cell nuclear transfer was a(n) ________ egg.

Accepted Answer

A)   haploid
B)   recombinant
C)   unfertilized
D)   diploid
E)   tetraploid

Question 16

Applications of DNA technology may result in negative effects,including

Accepted Answer

A)   triggering unwanted immune responses.
B)   creating too much of a cellular product.
C)   insertion into an incorrect location in a chromosome.
D)   triggering cancer.
E)   All answers are correct.

Question 17

Mitosis of a stem cell in an embryo results in ________; mitosis of a specialized cell in an embryo results in ________.

Accepted Answer

A)   one stem cell and one specialized cell; two specialized cells
B)   two specialized cells; one specialized cell
C)   two stem cells; one stem cell
D)   one stem cell and one specialized cell; two stem cells
E)   two stem cells; one stem cell and one specialized cell

Question 18

Since its invention in the 1980s,the polymerase chain reaction (PCR) is a very common tool,because PCR

Accepted Answer

A)   rapidly replicates DNA sequences with the use of bacterial cells.
B)   rapidly replicates DNA sequences with the use of animal cells.
C)   rapidly replicates DNA sequences without the use of living organisms.
D)   eliminates the need for recombinant DNA.
E)   reduces the size of plasmids and speeds their insertion.

Question 19

Which of the following is used to replace faulty DNA by introducing alleles that do not result in a genetic disorder?

Accepted Answer

A)   gene therapy
B)   somatic cell nuclear transfer
C)   genetic testing
D)   preimplantation genetic diagnosis
E)   All answers are correct.

Question 20

Gene therapy might someday be used to treat many genetic disorders by removing faulty genes from somatic cells and replacing them with functional gene copies.

Accepted Answer

A) True 
 B)False

Exam 11: DNA Technology

Human DNA includes

Correct AnswerverifiedShow Answer

All of the human genome encodes proteins.

Correct AnswerverifiedShow Answer

Transfer of transgenes from crop plants to wild relatives can render chemicals like glyphospate ineffective.

Correct AnswerverifiedTrue

Growth and development of a normal cell differs from a stem cell because

Correct AnswerverifiedA

What are the possible effects of gene doping?

Correct AnswerverifiedShow Answer

The Taq ________ enzyme is used in polymerase chain reaction (PCR) because it remains stable at high temperatures.

Correct AnswerverifiedShow Answer

DNA probes are typically labeled with a radioactive isotope or fluorescent tag to locate within the genome after binding.

Correct AnswerverifiedShow Answer

How can stem cells replace faulty cells in the body?

Correct AnswerverifiedShow Answer

How does DNA profiling detect genetic differences between individuals? It uses

Correct AnswerverifiedShow Answer

A transgenic organism is an organism that receives all of its genes from only a single parent.

Correct AnswerverifiedShow Answer

98.5% of the human genome does not encode proteins.

Correct AnswerverifiedTrue

DNA technology can be used to determine how humans are related to other living organisms.

Correct AnswerverifiedShow Answer

Stem cell technology has the potential to

Correct AnswerverifiedShow Answer

DNA probes can be used to detect the alleles for

Correct AnswerverifiedShow Answer

In cloning the sheep Dolly,a nucleus was implanted into an egg that had its nucleus removed.The result of this somatic cell nuclear transfer was a(n) ________ egg.

Correct AnswerverifiedShow Answer

Applications of DNA technology may result in negative effects,including

Correct AnswerverifiedShow Answer

Mitosis of a stem cell in an embryo results in ________; mitosis of a specialized cell in an embryo results in ________.

Correct AnswerverifiedShow Answer

Since its invention in the 1980s,the polymerase chain reaction (PCR) is a very common tool,because PCR

Correct AnswerverifiedShow Answer

Which of the following is used to replace faulty DNA by introducing alleles that do not result in a genetic disorder?

Correct AnswerverifiedShow Answer

Gene therapy might someday be used to treat many genetic disorders by removing faulty genes from somatic cells and replacing them with functional gene copies.

Correct AnswerverifiedShow Answer

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True

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Mitosis of a stem cell in an embryo results in ; mitosis of a specialized cell in an embryo results in .

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