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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

pyrimidines
All of these
protamines
purines

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Replication forks
Replication origins
Okazaki fragments
Leading strands

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DNA Structure and Replication
The role of primase is to

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

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

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

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DNA Structure and Replication
DNA replication results in

two completely new DNA molecules
one new molecule of RNA
one new DNA molecules 1 old molecule
two DNA molecules such that each one contains a strand of the original

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DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

helicase
DNA ligase
primase
DNA polymerase

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