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DNA Structure and Replication

DNA Structure and Replication
Which of the following would not contain DNA?

Mold
Bacteria
Yeast
Glass crystals

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DNA Structure and Replication
Enzyme, responsible for proofreading base pairing is

Telomerase
Primase
DNA ligase
DNA polymerase

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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?

none of these
About 100
One
Thousands and tens of thousands

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

6500 kilobase
3000 kilobase
5500 kilobase
4500 kilobase

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DNA Structure and Replication
The melting of 40-45 bp at the oriC site of E. coli requires

DNA + ATP + HU + DNAb
DNA + ATP + HU
DNA+ ATP + HU + DNAb + DNAa
DNA + ATP + HU + DNAb + DNAa + Pol III holoenzyme

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DNA Structure and Replication
What is the main damaging effect of UV radiation on DNA?

Depurination
Formation of thymine dimers
Dehydration
Single strand break

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