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DNA Structure and Replication

DNA Structure and Replication
DNA replication takes place in which direction?

Vary from organism to organism
Randomly
5 'to 3'
3' to 5'

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

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

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

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

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DNA Structure and Replication
Telomeres are usually rich in which nucleotide?

Guanine
Thymine
Cytosine
Adenine

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DNA Structure and Replication
The size of a linear DNA fragment in a gel can be estimated by

the sedimentation coefficient
the time it takes the gel to run
fluorescence in UV light
comparison with a molecular weight standard such as Hind III digested phage lambda

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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?

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

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