AP (Advanced Placement) Biology: Questions 142 - 146 of 327

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Question number: 142

» DNA and Protein Synthesis

MCQ▾

Question

If a nucleic acid were found in a cell with a long terminal repetitive sequence of adenines, it would probably be

Choices

Choice (5) Response

a.

Synthetic and inserted by researchers

b.

mRNA

c.

rDNA with the repetitive sequence representing the last exon

d.

A waste product of posttranscriptional modification

e.

cDNA

Question number: 143

» DNA and Protein Synthesis

MCQ▾

Question

The first step of PCR is ________ (I) ________ and the process of binding of primer to the denatured strand is called: ________ (II) ________.

Choices

Choice (5) Response

a.

I – Renaturation, II – Primer extension

b.

I – Denaturation, II - Annealing

c.

I – Annealing, II - Renaturation

d.

I – Primer extension, II – Denaturation

e.

Question does not provide sufficient data or is vague

Question number: 144

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following mechanisms of DNA repair is mediated by the recA protein?

Choices

Choice (5) Response

a.

Recombination repair

b.

Photoreactivation

c.

SOS repair

d.

Exonuclease proofreading

e.

Excision repair

Question number: 145

» DNA and Protein Synthesis

MCQ▾

Question

In Prokaryotes, the ribosomal binding site on mRNA is called

Choices

Choice (5) Response

a.

Shine-Dalgarno sequence

b.

Pribnow-sequence

c.

TATA box

d.

Hogness sequence

e.

All of the above

Question number: 146

» DNA and Protein Synthesis

MCQ▾

Question

The most common type of gel used for DNA separation is:

Choices

Choice (5) Response

a.

Agarose

b.

Agar

c.

Polyacrylamide

d.

All of the above

e.

None of the above

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