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DNA Structure and Replication

DNA Structure and Replication
How does ethidium bromide interact with DNA?

It intercalates between bases
It binds to phosphate
It does not interact
It binds to adenine

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DNA Structure and Replication
What does ligase do during replication of DNA?

Synthesizes the lagging strand
Makes copies of mRNA from DNA
Joins nicks in DNA strands
Digests mRNA when it is no longer needed

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DNA Structure and Replication
Reverse transcriptase produces

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

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DNA Structure and Replication
The chromosomal DNA complexes with

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

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DNA Structure and Replication
Who's X-ray work aided Watson and Crick in their discovery of the double helix?

R. Franklin
L. Pauling
W.H. Bragg
Leaderberg

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DNA Structure and Replication
TM refers to the temperature at which

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

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