Subject SAT (College Board) Biology: Questions 730 - 735 of 805

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Question number: 730

» DNA and Evolution

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MCQ▾

Question

Transcription of E. coli occurs in

Choices

Choice (4) Response

a.

four phases known as initiation, propagation, elongation and termination

b.

two phases known as initiation and termination

c.

three phases known as initiation, elongation and termination

d.

Question does not provide sufficient data or is vague

Question number: 731

» Atoms and Compounds

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MCQ▾

Question

When the velocity of enzyme activity is plotted against substrate concentration, which of the following is obtained?

Choices

Choice (4) Response

a.

Hyperbolic curve

b.

Straight line with negative slope

c.

Straight line with positive slope

d.

Parabolic

Question number: 732

» Mendel and Hereditary

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MCQ▾

Question

Segregation of Mendelian factors (no linkage, no crossing over) occurs during

Choices

Choice (4) Response

a.

metaphase I

b.

anaphase II

c.

anaphase I

d.

diplotene

Question number: 733

» Mendel and Hereditary

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MCQ▾

Question

Both husband and wife have normal vision although their fathers were color blind. The probability of their daughter becoming color blind is

Choices

Choice (4) Response

a.

0%

b.

50%

c.

25%

d.

75%

Question number: 734

» DNA and Evolution

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MCQ▾

Question

Which is not reliable with double helical structure of DNA?

Choices

Choice (4) Response

a.

A = T, C = G

b.

density of DNA dimisnish on heating

c.

A + T/C + G is not constant

d.

All of the above

Question number: 735

» Cell

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MCQ▾

Question

C4 plants are more efficient in

Choices

Choice (4) Response

a.

Lower rate f photorespiration

b.

Presence of thin cuticle

c.

Presence of large number of chloroplasts in the leaf cell

d.

Higher leaf area

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