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DNA Structure and Replication

DNA Structure and Replication
First evident that DNA is genetic material comes from the experiment of Griffith is

transduction
replication
translation
transformation

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DNA Structure and Replication
Deoxyribonucleoside triphosphates, being need in the chain termination methods are

dATP
dGTP and dCTP
dTTP
all of these

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

About 100
none of these
One
Thousands and tens of thousands

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DNA Structure and Replication
DNA helicase is used to

unwind the double helix
None of these
break a phosphodiester bond in DNA strand
interact the double helix closely

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DNA Structure and Replication
The packing ratio of nucleosomes is about

6
7
8
9

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

DNA ligase
primase
DNA polymerase
helicase

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