Subject SAT (College Board) Biology: Questions 676 - 680 of 824

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Question number: 676

» DNA and Evolution

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MCQ▾

Question

Identify the majorly important factor for continuity of a species from evolutionary point of view.

Choices

Choice (5)Response

a.

Copying of genome

b.

Synthesis of proteins

c.

Formation of gametes

d.

None of the above

e.

Question does not provide sufficient data or is vague

Question number: 677

» DNA and Evolution

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MCQ▾

Question

Sigma factor is part of

Choices

Choice (5)Response

a.

DNA ligase

b.

DNA polymerase

c.

RNA polymerase

d.

Endonuclease

e.

Question does not provide sufficient data or is vague

Question number: 678

» Mendel and Hereditary

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MCQ▾

Question

Test cross involves

Choices

Choice (5)Response

a.

Crossing between two genotypes with recessive trait

b.

Crossing between two F, hybrids

c.

Crossing the F1 hybrid with a double recessive genotype

d.

Crossing between two genotypes with dominant trait

e.

Question does not provide sufficient data or is vague

Question number: 679

» Mendel and Hereditary

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MCQ▾

Question

A polygenic inheritance in human beings is

Choices

Choice (5)Response

a.

skin colour

b.

sickle cell anaemia.

c.

phenylketonuria

d.

colour blindness

e.

All of the above

Question number: 680

» Mendel and Hereditary

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MCQ▾

Question

RR (Red) Antirrhinum is crossed with white (WW) one. Offspring RW are pink. This is an example of

Choices

Choice (5)Response

a.

dominant-recessive

b.

incomplete dominance

c.

hybrid

d.

supplementary genes

e.

All of the above

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