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DNA Structure and Replication

DNA Structure and Replication
The DNA polymerase in bacteria, responsible for DNA synthesis is

all of these
Polymerase I
Polymerase II
Polymerase III

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

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

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DNA Structure and Replication
The nucleosome consists of histone

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

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DNA Structure and Replication
What is the main damaging effect of UV radiation on DNA?

Depurination
Dehydration
Single strand break
Formation of thymine dimers

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

All of these
HSP-1
HU
H-NS

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DNA Structure and Replication
Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

Bleomycin
All of these
Tunicamycin
Erythromycin

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