AP (Advanced Placement) Biology: Questions 72 - 77 of 327

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Question number: 72

» DNA and Protein Synthesis

MCQ▾

Question

Which enzyme is critical to the process referred to as PCR?

Choices

Choice (5) Response

a.

DNA ligase

b.

Reverse transcriptase

c.

RNA polymerase

d.

DNA gyrase

e.

DNA polymerase

Question number: 73

» DNA and Protein Synthesis

MCQ▾

Question

Okazaki fragments are stitched together by

Choices

Choice (5) Response

a.

Hydrogenase

b.

Ligase

c.

Primase

d.

None of the above

e.

Question does not provide sufficient data or is vague

Question number: 74

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following sequences would hybridize most strongly to the sequence 5′ -ATTTGGGCCAATGGGCCCTTTAA-3′?

Choices

Choice (5) Response

a.

5′-TATTCCCGGTTACCCGGGAAATT-3′

b.

3′-ATTTGGGCCAATGGGCCCTTTAA-5′

c.

5′-ATTTGGGCCAATGGGCCCTTTAA-3′

d.

3′-TAAACCCCCAATCCCGGGAAATT-5′

e.

3′-TAAACCCGGTTACCCGGGAAATT-5′

Question number: 75

» Enyzmes and Metabolism

MCQ▾

Question

The activity of an enzyme can be controlled by various conditions and factors. Which of the following is a substance that halts enzyme activity by binding irreversibly to the enzyme?

Choices

Choice (5) Response

a.

A cofactor

b.

A coenzyme

c.

A repressor

d.

An inactivator

e.

A metabolic poison

Question number: 76

» DNA and Protein Synthesis

MCQ▾

Question

Restriction enzymes are also called as

Choices

Choice (5) Response

a.

Molecular scalpels

b.

Restriction endonuclease

c.

Molecular scissors

d.

Molecular knives

e.

All a. , b. , c. and d. are correct

Question number: 77

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following enzyme is used to joining the cut strands of DNA together?

Choices

Choice (5) Response

a.

DNA polymerase

b.

DNA ligase

c.

Endonuclease

d.

Primase

e.

All of the above

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