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DNA Structure and Replication

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
Messelsen and Stahl model of replication was called

conservative replication
Cri du Chat
semi-conservative replication
dispersive replication

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DNA Structure and Replication
The role of primase is to

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

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DNA Structure and Replication
An RNA primer is synthesized by

DNA topoisomerase
DNA helicases
primase
ligase

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Mg++
low temperature and Ca++
high temperature and Ca++
high temperature and Mg++

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Okazaki fragments
Primers
Leading strands
Lagging strand

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MORE MCQ ON DNA Structure and Replication

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