AP (Advanced Placement) Biology: Questions 22 - 26 of 868

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Question number: 22

» DNA and Protein Synthesis

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MCQ▾

Question

All of the following enzymes are required for DNA replication EXCEPT

Choices

Choice (5)Response

a.

Endonuclease

b.

Helicase

c.

Topoisomerase

d.

Ligase

e.

DNA polymerase

Question number: 23

» DNA and Protein Synthesis

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MCQ▾

Question

Which of the following part is responsible for recognizing the promoter in the bacterial RNA polymerase?

Choices

Choice (5)Response

a.

Rho protein

b.

Primer

c.

Sigma subunit

d.

Alpha subunit

e.

None of the above

Question number: 24

» Enyzmes and Metabolism

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MCQ▾

Question

Which of the following two things are binds to competitive inhibition enzyme active site?

Choices

Choice (5)Response

a.

Catalyst

b.

Inhibitor

c.

Substrate

d.

Both b. and c. are correct

e.

Question does not provide sufficient data or is vague

Question number: 25

» DNA and Protein Synthesis

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MCQ▾

Question

Molecular biologists can identify an open reading frame by the

Choices

Choice (5)Response

a.

Presence of the poly (A) tail

b.

Post promoter presence of the triplet TAC on the sense strand

c.

Presence of the triplet AUG in the promoter region

d.

Presence of the conserved sequence TATA in eukaryotic DNA

e.

Presence of the conserved sequence TATAAT in the operator region of prokaryotes

Question number: 26

» DNA and Protein Synthesis

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MCQ▾

Question

Sugar phosphate backbone chain has direction to

Choices

Choice (5)Response

a.

3’ to 5’

b.

5’ to 3’

c.

3’ to 4’

d.

4’ to 3’

e.

None of the above

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