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DNA Structure and Replication

DNA Structure and Replication
When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand?

Guanine
Uracil
Cytosine
Phosphate

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DNA Structure and Replication
The role of primase is to

dismantle RNA primer
synthesize an RNA primer to begin the elongation process
proofread base pairing
cleave and unwinds short sections of DNA ahead of the replication fork

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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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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

helicase
transposase
reverse transcriptase
restriction endonuclease

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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?

One
About 100
none of these
Thousands and tens of thousands

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

None of these
using RNA as a template
using enzyme called telomerase
shortening of the double stranded replicated portion

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