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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 III
Polymerase II
Polymerase I

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

Thousands and tens of thousands
One
About 100
none of these

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

All of these
protamines
pyrimidines
purines

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

Helicase
Primase
DNA ligase
DNA polymerase

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DNA Structure and Replication
Which is the largest among the followings?

Nitrogenous base
Phosphate
Nucleotide
Carbon

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

Erythromycin
All of these
Bleomycin
Tunicamycin

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