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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
purines
protamines

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

restriction endonuclease
helicase
transposase
reverse transcriptase

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DNA Structure and Replication
DNA replication results in

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

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DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

6500 kilobase
4500 kilobase
5500 kilobase
3000 kilobase

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DNA Structure and Replication
In DNA, guanine pairs with

Thymine
Adenine
Uracil
Cytosine

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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
dismantle RNA primer
proofread base pairing
synthesize an RNA primer to begin the elongation process

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