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DNA Structure and Replication

DNA Structure and Replication
Messelsen and Stahl model of replication was called

Cri du Chat
dispersive replication
semi-conservative replication
conservative replication

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DNA Structure and Replication
In DNA, guanine pairs with

Uracil
Cytosine
Thymine
Adenine

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DNA Structure and Replication
What is the name given to the points at which a DNA helix is unwound and new strands develop?

Okazaki fragments
Replication forks
Leading strands
Replication origins

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DNA Structure and Replication
Which of the following is an active site on its single polypeptide chain for DNA Polymerase I?

All of these
5' → 3' exonuclease
3' → 5' exonuclease
5' → 3' polymerase

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DNA Structure and Replication
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

Three
One
Two
A smear

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DNA Structure and Replication
During conventional transformation experiments E. coli cells and plasmid DNA interacts in an environment of

low temperature and Mg++
high temperature and Mg++
high temperature and Ca++
low temperature and Ca++

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