exam 3 multiple choice Flashcards

1
Q

A DNA molecule is more compact than its relaxed form
a. Hypochromic
b. Supercoiled
c. Annealed
d. Spliced
e. Double-helical

A

b.Supercoiled

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2
Q

Which of the following macromolecules are Nucleic Acids?

a) Carbohydrates
b) Proteins
c) Lipids
d) DNA and RNA
e) Amino acids

A

d) DNA and RNA

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3
Q

12 The central dogma of biology is

a) DNA RNA Protein
b) RNA DNA Protein
c) RNA Protein DNA
d) Protein DNA RNA

A

a) DNA RNA Protein

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4
Q

13 What is the nucleotide sequence of the DNA strand that is complementary to 5’-ATCGCAACTGTCACTA-3’?

a) 5’-TAGCGTTGACAGTGAT-3’
b) 5’-UAGUGACAGUUGCGAU-3’
c) 5’-TAGCGTTGACAGTGAT-3’
d) 5’-TAGTGACAGTTGCGAT-3’
e) 5’-ATCACTGTCAACGCTA-3’

A

a) 5’-TAGCGTTGACAGTGAT-3’

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5
Q

14 What enzyme is used to create RNA from DNA?

a. RNA polymerase
b. DNA polymerase
c. reverse transcriptase
d. RNA–DNA transcriptase
e. SDS Gel Electrophoresis

A

ca. RNA polymerase

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6
Q

15 Which molecule will absorb light at 280 nm? Chose all that applies

a. DNA
b. RNA
c. Proteins

A

all of the above

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7
Q

What enzyme is used to create DNA from DNA?

a. RNA polymerase
b. DNA polymerase
c. reverse transcriptase
d. RNA–DNA transcriptase
e. homogenate

A

b. DNA polymerase

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8
Q

17 What enzyme is used to create DNA from RNA?

a. RNA polymerase
b. DNA polymerase
c. reverse transcriptase
d. RNA–DNA transcriptase
e. Homogenate

A

c. reverse transcriptase

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9
Q

AZT is a powerful HIV drug. AZT is a
a) Nucleoside/Nucleotide
b) Protein
C) Carbohydrate
d) Amino acid

A

a) Nucleoside/Nucleotide

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10
Q

An Aldose is a carbohydrate that has which of the following functional group?
a) Aldehyde
b) Ketone
c) Alcohol
d) Amine

A

a) Aldehyde

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11
Q

Does SARS CoV-2 store its genetic information in
a) DNA
b) RNA
c) DNA and RNA

A

b) RNA

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