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DNA Structure and Replication

DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

A-DNA
Z-DNA
B-DNA
X-DNA

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

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

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DNA Structure and Replication
Reverse transcriptase produces

DNA from RNA
DNA from peptides
RNA from RNA
RNA from DNA

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DNA Structure and Replication
DNA polymerases I also has

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

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

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

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DNA Structure and Replication
The chromosomal DNA complexes with

five types of histone as H1, H2A, H2B, H3 and H4
three types of histone as H1, H2A and H4
four types of histone as H1, H2A, H3 and H4
two types of histone as H1 and H4

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