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DNA Structure and Replication

DNA Structure and Replication
What is the range of melting point temperatures (Tm) for most DNA molecules?

60 to 80°C
50 to 60°C
70 to 90°C
80 to l00°C

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

5' → 3' polymerase
All of these
5' → 3' exonuclease
3' → 5' exonuclease

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DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Okazaki fragments
Primers
Leading strands
Lagging strand

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DNA Structure and Replication
Which will require a higher temperature to denature?

RNA with a high G-C content
RNA with a high A-T content
DNA with a high G-C content
DNA with a high A-T content

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

primase
DNA ligase
helicase
DNA polymerase

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DNA Structure and Replication
In an agarose gel, DNA is moving from

A to B
anode to cathode
cathode to anode
left to right

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