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DNA Structure and Replication

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

Replicase
Helicase
Synthesase
Polymerase

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DNA Structure and Replication
The role of primase is to

synthesize an RNA primer to begin the elongation process
cleave and unwinds short sections of DNA ahead of the replication fork
dismantle RNA primer
proofread base pairing

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

are joined together by DNA ligase
are removed by helicase + ATP
result in Okazaki fragments on leading strand
are removed by Pol I

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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
purines
protamines
pyrimidines

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

H-NS
HU
HSP-1
All of these

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

All of these
Bleomycin
Erythromycin
Tunicamycin

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