AP (Advanced Placement) Biology: Questions 9 - 14 of 327

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Question number: 9

» DNA and Protein Synthesis

MCQ▾

Question

In 50S and 30S subunits of 70S ribosomes, S is stands for the:

Choices

Choice (5) Response

a.

SI unit

b.

Svedberg unit

c.

Solubility factor

d.

None of the above

e.

Question does not provide sufficient data or is vague

Question number: 10

» DNA and Protein Synthesis

MCQ▾

Question

The binding of the prokaryotic DNA dependent RNA polymerase to promoter site is inhibited by:

Choices

Choice (5) Response

a.

Rifampicin

b.

Puromycin

c.

Rifampin

d.

Both a. and c. are correct

e.

None of the above

Question number: 11

» DNA and Protein Synthesis

MCQ▾

Question

Table shows the genetic code

Table Shows the Genetic Code

Table shows the genetic code

Referring to the preceding figure, if the base sequence triplet AAC were found on the DNA sense strand, what would be the resulting amino acid added within the ribosome?

Choices

Choice (5) Response

a.

Glycine

b.

Proline

c.

Asparagine

d.

Leucine

e.

Question does not provide sufficient data or is vague

Question number: 12

» Enyzmes and Metabolism

MCQ▾

Question

Which of the following process by which the body maintains a near-constant internal environment?

Choices

Choice (5) Response

a.

Peristalsis

b.

Respiration

c.

Homeostasis

d.

Excretion

e.

None of the above

Question number: 13

» Enyzmes and Metabolism

MCQ▾

Question

Biosynthesis of complex molecules from simple molecule forms is called as:

Choices

Choice (5) Response

a.

Metabolism

b.

Anabolism

c.

Catabolism

d.

All of the above

e.

None of the above

Question number: 14

» DNA and Protein Synthesis

MCQ▾

Question

Bacterial transcription requires the presence of what is known as a sigma subunit. Why is this component important?

Choices

Choice (5) Response

a.

It must be present to locate the poly (A) tail properly.

b.

It must be present to ligate the Okazaki fragments properly.

c.

It is required to terminate the process of transcription properly.

d.

It is required as a cofactor of the RNA polymerase and must be present throughout the process to maintain transcription.

e.

It must be present for the RNA polymerase to locate the promoter region properly.

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