DNA and Evolution [Subject SAT (College Board) Biology]: Questions 19 - 23 of 134

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Question number: 19

» DNA and Evolution

Edit
MCQ▾

Question

Which of the following is true about Z-DNA helix?

Choices

Choice (5)Response

a.

It tends to be found at the 3’ end of the genes

b.

It has fewer base pairs per turn than B-DNA

c.

It has alternating GC sequences

d.

It is a permanent conformation of DNA

e.

All of the above

Question number: 20

» DNA and Evolution

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the following and find correct options

List-Ⅰ (Column I)List-Ⅱ (Column II)

(A)

Lysogeny

(i)

Prophage

(B)

HIV

(ii)

Retro viridae

(C)

Pilus

(iii)

Host

(D)

Virus

(iv)

Donar

Choices

Choice (5)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (ii)
  • (iv)
  • (i)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (ii)
  • (i)
  • (iv)
  • (iii)

d.

  • (ii)
  • (iv)
  • (i)
  • (iii)

e.

All of the above

Question number: 21

» DNA and Evolution

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MCQ▾

Question

Which of the following statements are true regarding restriction enzymes?

Choices

Choice (5)Response

a.

Eco R1 is a Type II restriction enzyme

b.

Type I enzyme cuts far away from the restriction sites

c.

Type II cuts DNA within restriction sites

d.

All a. , b. and c. are correct

e.

Question does not provide sufficient data or is vague

Question number: 22

» DNA and Evolution

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MCQ▾

Question

Which ratio is constant for DNA?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 23

» DNA and Evolution

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MCQ▾

Question

Mitochondria probably originated from bacteria because both have

Image of the bacteria

Image of the Bacteria

Choices

Choice (5)Response

a.

Similar pigments

b.

Similar types of circular DNA

c.

Same functions

d.

None of the above

e.

All of the above

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