Biochemistry - DNA Structure and Replication

Exercise :: DNA Structure and Replication - Section 1

36. 

E.coli DNA polymerases II and III lack

A. 5' → 3' exonuclease activity
B. 5' → 3' endonuclease activity
C. partially 5' → 3' exonuclease activity
D. partially 5' → 3' endonuclease activity

Answer: Option A

Explanation:

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37. 

In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called

A. protamines
B. purines
C. pyrimidines
D. all of the above

Answer: Option A

Explanation:

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38. 

Okazaki fragments occur during

A. transformation
B. replication
C. polymerase reaction
D. synthesis

Answer: Option B

Explanation:

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39. 

DNA can be sequenced by the

A. chemical method
B. chain termination procedure
C. both (a) and (b)
D. physical method

Answer: Option C

Explanation:

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40. 

Which histone(s) are associated with the linker DNA of a nucleosome?

A. Histone H1
B. Histones H2A and H2B
C. Histone H3
D. Histone H4

Answer: Option A

Explanation:

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