Anatomy and physiology I EXAM 3 test bank (questions and answers)

Question 1
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Golden rice is golden in color because it is rich in
Select one:
a. chromium picolinate
b. vitamin A
c. vitamin C
d. beta carotene



Question 2
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Which of the following statements about DNA technology is false?
Select one:
a. DNA technology is now used to mass-produce human insulin
b. DNA technology is now used to create cells that can identify and kill cancer cells


c. DNA technology is now used to mass-produce human growth hormone
d. DNA technology is now used to produce vaccines that are harmless mutants of a pathogen

Question 3
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What is the smallest number of cells needed to perform a successful DNA profile?
Select one:
a. 1
b. 200
c. 1,000
d. 20



Question 4
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Gel electrophoresis sorts DNA molecules on the basis of their
Select one:
a. solubility in the gel
b. size


c. nucleotide sequence
d. ability to bind to mRNA

Question 5
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Restriction enzymes specifically recognize and cut short sequences of DNA called
Select one:
a. short terminal repeats
b. sticky ends
c. restriction sites


d. promoter sequences

Question 6
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The only recombinant cells that can correctly attach sugars to proteins to form glycoprotein products
are
Select one:
a. algal cells
b. E. coli cells
c. mammalian cells


d. yeast cells

Question 7
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Approximately what percentage of human DNA is noncoding?
Select one:
a. 79%

, b. 99.9%
c. 98.5%


d. 49%

Question 8
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The ________ approach to gene cloning employs a mixture of fragments from the entire genome of
an organism and results in the production of thousands of different recombinant plasmids.
Select one:
a. shotgun


b. Ti
c. AK 47
d. V protein

Question 9
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The feature of sticky ends that makes them especially useful in DNA recombination is their ability to
Select one:
a. allow plasmids to attach to the main bacterial chromosome
b. bind to DNA and thereby activate transcription
c. bind to ribosomes and thereby activate translation