Subject SAT (College Board) Biology: Questions 644 - 648 of 824

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Question number: 644

» DNA and Evolution

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MCQ▾

Question

The miss-incorporated base can change into a permanent mutation through

Choices

Choice (5)Response

a.

Transcription

b.

Transposition

c.

Translation

d.

Replication

e.

None of the above

Question number: 645

» DNA and Evolution

Edit
MCQ▾

Question

Prokaryotic RNA polymerase has polypeptide chains

Choices

Choice (5)Response

a.

3

b.

5

c.

4

d.

2

e.

All of the above

Question number: 646

» DNA and Evolution

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MCQ▾

Question

Spot the RNA serves as adaptor molecule through protein synthesis.

Choices

Choice (5)Response

a.

hnRNA

b.

mRNA

c.

tRNA

d.

rRNA

e.

None of the above

Question number: 647

» DNA and Evolution

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MCQ▾

Question

What is correct with reference to DNA polymerase?

Choices

Choice (5)Response

a.

It can synthesize DNA in the 5’ to 3’ direction

b.

It can synthesize DNA in the 3’ to 5’ direction

c.

It can synthesize mRNA in the 3’ to 5’ direction

d.

It can synthesize mRNA in the 5’ to 3’ direction

e.

All of the above

Question number: 648

» Mendel and Hereditary

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MCQ▾

Question

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F2 generation of the cross RRYY x rryy?

Choices

Choice (5)Response

a.

Only wrinkled seeds with yellow cotyledons

b.

Round seeds with yellow cotyledons, and wrinkled seeds with yellow cotyledons

c.

Only round seeds with green cotyledons

d.

Only wrinkled seeds with green cotyledons

e.

Question does not provide sufficient data or is vague

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