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DNA Structure and Replication

DNA Structure and Replication
What is the approximate size (in kb) of the E. coli genome?

5500 kilobase
6500 kilobase
4500 kilobase
3000 kilobase

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DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

the ratio of Adenine to thymine was always the same
DNA was responsible for heredity
proteins and DNA were responsible for heredity
phage DNA was similar to bacterial DNA

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DNA Structure and Replication
The 5' and 3' numbers are related to the

the number of phosphates
the base pair rule
carbon number in sugar
length of the DNA strand

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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?

One
About 100
Thousands and tens of thousands
none of these

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DNA Structure and Replication
The nicks or gaps between Okazaki fragments are eventually sealed by

polymerase
gyrase
DNA ligase
RNA ligase

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DNA Structure and Replication
The DNA is negatively super coiled, complexes to histone,

HU
All of these
HSP-1
H-NS

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