AP (Advanced Placement) Biology: Questions 163 - 169 of 428

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Question number: 163

» DNA and Protein Synthesis

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MCQ▾

Question

Which of the following RNA is contains unusual purines and pyrimidines?

Choices

Choice (5) Response

a.

tRNA

b.

mRNA

c.

rRNA

d.

All of the above

e.

Question does not provide sufficient data or is vague

Question number: 164

» DNA and Protein Synthesis

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MCQ▾

Question

During DNA replication, a mechanism of DNA polymerase helps in preventing error is called:

Choices

Choice (5) Response

a.

Proof checking

b.

Proof reading

c.

Rechecking

d.

All of the above

e.

None of the above

Question number: 165

» DNA and Protein Synthesis

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MCQ▾

Question

Which base pairing represents the strongest binding?

Choices

Choice (5) Response

a.

A · T

b.

C · A

c.

G · T

d.

G · C

e.

A · U

Question number: 166

» DNA and Protein Synthesis

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MCQ▾

Question

Adding a phosphate group to proteins is called as

Choices

Choice (5) Response

a.

Replication

b.

Carbation

c.

Phosphorylation

d.

Hydrogenation

e.

None of the above

Question number: 167

» DNA and Protein Synthesis

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MCQ▾

Question

A nucleoside is composed of

Choices

Choice (5) Response

a.

A base + a sugar + phosphate

b.

A base + a phosphate

c.

A base + a sugar

d.

All of the above

e.

Question does not provide sufficient data or is vague

Question number: 168

» DNA and Protein Synthesis

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MCQ▾

Question

What enzyme (s) is (are) used by researchers to excise genes of interest?

Choices

Choice (5) Response

a.

Restriction endonucleases

b.

DNA-dependent DNA polymerase

c.

DNA-dependent RNA polymerase

d.

RNA-dependent RNA polymerase

e.

DNA ligase and primase

Question number: 169

» DNA and Protein Synthesis

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MCQ▾

Question

The genetic material of retroviruses such as HIV is:

Choices

Choice (5) Response

a.

DNA

b.

RNA

c.

Protein

d.

None of the above

e.

All of the above