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DNA Structure and Replication

DNA Structure and Replication
Klenow fragment without free nucleotides exhibits

no activity
endonuclease activity
nickase activity
exonuclease activity

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It binds to adenine
It intercalates between bases
It binds to phosphate
It does not interact

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

reverse transcriptase
both (a) and (b)
primase
RNA polymerase

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DNA Structure and Replication
Which of the following is not a structural motif in DNA binding proteins?

zinc finger
helix-turn-helix
TFIID
bZIP

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

linking number
twisting number
none of these
helix frequency

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Adenine
Thymine
Cytosine
Guanine

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