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DNA Structure and Replication

DNA Structure and Replication
Which of the following enzyme adds complementary bases during replication?

Helicase
Replicase
Synthesase
Polymerase

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

helix-turn-helix
bZIP
TFIID
zinc finger

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

helix frequency
linking number
none of these
twisting number

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DNA Structure and Replication
DNA helicase is used to

None of these
unwind the double helix
interact the double helix closely
break a phosphodiester bond in DNA strand

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DNA Structure and Replication
The nucleosome consists of histone

None of these
hexamer and 146 bp of DNA
octamer and 146 bp of DNA
tetramer and 146 bp of DNA

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DNA Structure and Replication
Messelsen and Stahl model of replication was called

dispersive replication
semi-conservative replication
Cri du Chat
conservative replication

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