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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

absorption
adhesion
density
resorption

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DNA Structure and Replication
In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band

with 14N-containing DNA
all of these
above DNA containing 14N
below DNA containing 14N

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

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

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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

protamines
All of these
purines
pyrimidines

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DNA Structure and Replication
The DNA polymerase in bacteria, responsible for DNA synthesis is

all of these
Polymerase III
Polymerase II
Polymerase I

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DNA Structure and Replication
DNA polymerases I also has

both (a) and (b)
3'-5'exonuclease activity
5'-3' exonuclease activity
5'-3' endonuclease activity

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