Subject SAT (College Board) Biology: Questions 783 - 789 of 805

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Question number: 783

» DNA and Evolution

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MCQ▾

Question

Nucleotides in RNA are joined by

Choices

Choice (4) Response

a.

3’6’ phosphodiester bond

b.

3’5’ phosphodiester bond

c.

3’2’ phosphodiester bond

d.

3’4’ phosphodiester bond

Question number: 784

» Atoms and Compounds

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MCQ▾

Question

Emerson enhancement effect and red drop have been instrumental in the discovery of

Choices

Choice (4) Response

a.

Photophosphorylation and cyclic electron transfer

b.

Two photosystems operating simultaneously

c.

Photophosphorylation and non-cyclic electron transfer

d.

Oxidative phosphorylation

Question number: 785

» DNA and Evolution

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MCQ▾

Question

Genetic drift defines

Choices

Choice (4) Response

a.

gene frequency in same generation

b.

appearance of recessive genes

c.

gene frequency from one generation to next

d.

None of the above

Question number: 786

» Cell

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MCQ▾

Question

CAM plants help in

Choices

Choice (4) Response

a.

Conserving water

b.

Reproduction

c.

Disease resistance

d.

Secondary growth

Question number: 787

» DNA and Evolution

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MCQ▾

Question

RNA does not own

Choices

Choice (4) Response

a.

Uracil

b.

Cytosine

c.

Thymine

d.

Adenine

Question number: 788

» DNA and Evolution

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MCQ▾

Question

If a functional gene is disrupted while disrupting a restriction site ________ is formed.

Choices

Choice (4) Response

a.

Frame shift mutation

b.

Either of the mutation

c.

Point mutation

d.

Any other kind of mutation

Question number: 789

» Cell

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MCQ▾

Question

Some enzymes covalently bind a non-protein organic molecule to the active site. The organic molecule concerned is required if the enzyme is to catalyze a reaction on a substrate. What is the term used for such a molecule?

Choices

Choice (4) Response

a.

Cofactor

b.

Modulator

c.

Coenzyme

d.

Prosthetic group

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