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DNA Structure and Replication

DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

polymerase
gyrase
RNA ligase
DNA ligase

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DNA Structure and Replication
In an agarose gel, DNA is moving from

left to right
anode to cathode
cathode to anode
A to B

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DNA Structure and Replication
The chromosomal DNA complexes with

two types of histone as H1 and H4
four types of histone as H1, H2A, H3 and H4
five types of histone as H1, H2A, H2B, H3 and H4
three types of histone as H1, H2A and H4

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

proteins and DNA were responsible for heredity
DNA was responsible for heredity
the ratio of Adenine to thymine was always the same
phage DNA was similar to bacterial DNA

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

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

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DNA Structure and Replication
The role of primase is to

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

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