Subject SAT (College Board) Biology: Questions 161 - 164 of 824

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Question number: 161

» DNA and Evolution

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MCQ▾

Question

Which of the following statements is true about mutations?

Choices

Choice (5)Response

a.

Irreversible

AND

Rates tend to be very high in most populations.

b.

Generally lethal

c.

Only certain gene locations are affected.

d.

Source of genetic variation

e.

All a. , b. , c. and d. are correct

Question number: 162

» Cell

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MCQ▾

Question

Which of the following statement/s regarding coelenterates is/are wrong?

  1. Cnidocytes are present on the tentacles and on the body

  2. Diploblastic with cellular level of organization

  3. Polyps produce medusa sexually and medusa form polyps asexually

  4. Polyp form-s are free living

Choices

Choice (5)Response

a.

1,2 and 3

b.

2 and 3 only

c.

1 and 2 only

d.

2,3 and 4

e.

Question does not provide sufficient data or is vague

Question number: 163

» Organism and Population

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MCQ▾

Question

Identify the following organelle and choose the correct option

Identify the following organelle

Identify the Following Organelle

Choices

Choice (5)Response

a.

A- Matrix, B- Thylakoid

b.

A- Matrix, B- Granum

c.

A- Cytoplasm, B- Thylakoid

d.

A- Stroma, B- Granum

e.

None of the above

Question number: 164

» Mendel and Hereditary

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MCQ▾

Question

Trisomy in humans is the result of

Choices

Choice (5)Response

a.

x-inactivation.

b.

Nondisjunction.

c.

Polygenic inheritance.

d.

Epistasis.

e.

Pleiotropy.

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