AP (Advanced Placement) Biology: Questions 1 - 4 of 327

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Question number: 1

» DNA and Protein Synthesis

MCQ▾

Question

Which one of the following is the complementary sequence of 5′ TTAAGCGTAC 3′?

Choices

Choice (5) Response

a.

5’ AATTCGCATG 3’

b.

5’ GTACGCTTAA 3’

c.

3’ CATGCGAATT 5’

d.

3’ TTAAGCGTAC 3’

e.

All of the above

Question number: 2

» Enyzmes and Metabolism

MCQ▾

Question

During milk fermentation, which of the following is converted lactose into lactic acid?

Choices

Choice (5) Response

a.

Lactobacillus

b.

Streptococcus

c.

Lactococcus

d.

Streptobacillus

e.

None of the above

Question number: 3

» DNA and Protein Synthesis

MCQ▾

Question

If a mutation resulted in a single base substitution at the third position within the anticodon region of tRNA, what would be the most likely result?

Choices

Choice (5) Response

a.

The chances are good that the resulting protein would remain unchanged because of the redundancy within the genetic code.

b.

The resulting protein would most likely be dysfunctional.

c.

Such a change within an anticodon region always has a lethal effect on the cell.

d.

The change would only affect the resulting protein if it resided within an enzyme’s active site.

e.

It would make no difference to the cell because redundancy in the genetic code would prevent a change in the resulting protein.

Question number: 4

» Enyzmes and Metabolism

MCQ▾

Question

An enzyme binds a substrate in a region called the:

Choices

Choice (5) Response

a.

Prosthetic group

b.

Allosteric site

c.

Dehydration site

d.

Reactive group

e.

Active site

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