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DNA Structure and Replication

DNA Structure and Replication
What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

S
H
B
None of these

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DNA Structure and Replication
In DNA, guanine pairs with

Uracil
Thymine
Cytosine
Adenine

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DNA Structure and Replication
In an agarose gel, DNA is moving from

A to B
anode to cathode
left to right
cathode to anode

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DNA Structure and Replication
DNA gyrase in E. coli

performs the same function as helicase in eukaryotes
adds positive supercoils to chromosomal DNA
is required only at the oriC site
can be inhibited with antibiotics

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

Thousands and tens of thousands
none of these
About 100
One

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DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

1
nl
ml
μl

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