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DNA Structure and Replication

DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Thymine
Cytosine
Guanine
Adenine

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DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One medium and one heavy band
One medium band
One light, one medium and one heavy band
One light and one medium band

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DNA Structure and Replication
In DNA, guanine pairs with

Cytosine
Uracil
Thymine
Adenine

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DNA Structure and Replication
The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is

strandase
helicase
DNA polymerase
none of these

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

Ori
Pro
a promoter
an initiation codon

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Mg++
low temperature and Ca++
high temperature and Mg++
high temperature and Ca++

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