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DNA Structure and Replication

DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

DNA ligase
DNA polymerase
helicase
primase

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DNA Structure and Replication
In DNA, guanine pairs with

Cytosine
Adenine
Thymine
Uracil

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

kinoplast
none of these
solenoid
halonoid

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DNA Structure and Replication
E.coli DNA polymerases II and III lack

5' → 3' exonuclease activity
partially 5' → 3' exonuclease activity
partially 5' → 3' endonuclease activity
5' → 3' endonuclease activity

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

bZIP
zinc finger
helix-turn-helix
TFIID

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
ligase
single stranded binding proteins
DNA helicases

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