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DNA Structure and Replication

DNA Structure and Replication
A cesium chloride will separate DNA molecules by

absorption
resorption
density
adhesion

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DNA Structure and Replication
Reverse transcriptase produces

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

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DNA Structure and Replication
The packing ratio of nucleosomes is about

6
8
9
7

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

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

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DNA Structure and Replication
The chromosomal DNA complexes with

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

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

Polymerase II
Polymerase I
none of these
Polymerase III

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