Subject SAT (College Board) Biology: Questions 654 - 659 of 805

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Question number: 654

» 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 (4) 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

Question number: 655

» Mendel and Hereditary

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MCQ▾

Question

Abnormal separation of chromosomes is classified as:

Choices

Choice (4) Response

a.

Diploid budding

b.

Non-disjunction

c.

Disjunction

d.

Haploid budding

Question number: 656

» DNA and Evolution

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MCQ▾

Question

The presence of gill slits in the embryos of all vertebrates ropes the theory of

Choices

Choice (4) Response

a.

biogenesis

b.

metamorphosis

c.

organic evolution

d.

recapitulation

Question number: 657

» DNA and Evolution

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MCQ▾

Question

Genetic drift operates only in

Choices

Choice (4) Response

a.

island populations

b.

larger populations

c.

smaller populations

d.

Mendelian populations

Question number: 658

» DNA and Evolution

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MCQ▾

Question

RNA polymerase in prokaryotes has a removable

Choices

Choice (4) Response

a.

alpha subunit

b.

beta subunit

c.

sigma subunit

d.

All of the above

Question number: 659

» DNA and Evolution

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MCQ▾

Question

Random genetic drift in a population perchance results from

Choices

Choice (4) Response

a.

Great population size

b.

Interbreeding within the population

c.

Stable low mutation rate

d.

Highly heritably variable individuals

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