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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
DNA helicase is used to

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

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DNA Structure and Replication
Each replication bubbles consists of

3 replication forks
2 replication forks
1 replication forks
4 replication forks

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

DNA polymerase
helicase
primase
DNA ligase

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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
One
Thousands and tens of thousands
none of these

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DNA Structure and Replication
DNAs when charged, migrate in a gel towards the

negative pole
positive pole
none of these
will not migrate

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