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DNA Structure and Replication

DNA Structure and Replication
DNA polymerases I also has

5'-3' endonuclease activity
both (a) and (b)
3'-5'exonuclease activity
5'-3' exonuclease activity

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

DNA helicases
ligase
DNA topoisomerase
single stranded binding proteins

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DNA Structure and Replication
TM refers to the temperature at which

50% of a protein molecules are denatured
50% of a DNA molecule is denatured
membranes are 50% fluid
All of these

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

none of these
Polymerase I
Polymerase II
Polymerase III

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DNA Structure and Replication
Automated DNA sequencing uses the chain termination method

either (b) or (c)
with no primer
but with a polynucleotide primer labeled with a fluorescent dye
but with an oligonucleotide primer labeled with a fluorescent dye

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DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

S
H
None of these
B

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