AP (Advanced Placement) Biology: Questions 130 - 135 of 327

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Question number: 130

» DNA and Protein Synthesis

MCQ▾

Question

Sticky ends are overhanging pieces of single stranded

Choices

Choice (5) Response

a.

Proteins

b.

RNA

c.

DNA

d.

Question does not provide sufficient data or is vague

e.

None of the above

Question number: 131

» DNA and Protein Synthesis

MCQ▾

Question

Which functional sequence/module is not found in eukaryotic promoters?

Choices

Choice (5) Response

a.

Pribnow box

b.

CAAT box

c.

GC box

d.

TATA box

e.

None of the above

Question number: 132

» DNA and Protein Synthesis

MCQ▾

Question

DNA nitrogenous base thymine forms two hydrogen bonds with

Choices

Choice (5) Response

a.

Cytosine

b.

Guanine

c.

Thymine

d.

Adenine

e.

None of the above

Question number: 133

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following enzymes brings about the completion of DNA replication?

Choices

Choice (5) Response

a.

DNA polymerase

b.

DNA ligase

c.

RNA primase

d.

Helicase

e.

None of the above

Question number: 134

» DNA and Protein Synthesis

MCQ▾

Question

DNA repair mechanism included:

Choices

Choice (5) Response

a.

Excision repair

b.

Recombination repair

c.

Photoreactivation

d.

All a. , b. and c. are correct

e.

Question does not provide sufficient data or is vague

Question number: 135

» DNA and Protein Synthesis

MCQ▾

Question

To isolate genes for cloning into another organism, DNA is frequently fragmented by enzymes. To purify these fragments, what is done next?

Choices

Choice (5) Response

a.

Specific bacteria are added to the solution, because selected species allow specific sequences of foreign DNA to be incorporated into their own.

b.

The fragments are separated from each other by a series of filtration steps using filters with differing pore sizes.

c.

The fragments are separated by gradient ultracentrifugation.

d.

The various fragments are separated from each other by agarose gel electrophoresis.

e.

The desired fragments are removed from the solution by affinity chromatography.

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