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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?

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

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DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

none of these
Polymerase III
Polymerase I
Polymerase II

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

positive pole
will not migrate
none of these
negative pole

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DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

70 °C
60°C
100 °C
90 °C

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

dATP
dGTP and dCTP
all of these
dTTP

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DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA topoisomerase
DNA helicases
single stranded binding proteins
ligase

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