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DNA Structure and Replication

DNA Structure and Replication
What is the approximate percentage of repetitive DNA sequences in human DNA?

10 to 20%
20 to 30%
30 to 40%
40 to 50%

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DNA Structure and Replication
DNA replication in eukaryotes occurs only in

S phase
G2 phase
G1 phase
M phase

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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

purines
pyrimidines
protamines
All of these

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It binds to phosphate
It binds to adenine
It intercalates between bases
It does not interact

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DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

DNA polymerase
Telomerase
DNA ligase
Primase

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DNA Structure and Replication
Okazaki fragments occur on the __________ and are bonded together by __________

Leading strand, polymerase
tRNA, polymerase
Lagging strand, ligase
mRNA, anticodons

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