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DNA Structure and Replication

DNA Structure and Replication
Which DNA polymerase removes RNA primers in DNA synthesis?

Polymerase III
Polymerase I
Polymerase II
none of these

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DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

Chromosomes would get longer
Nothing would happen
Chromosomes would become progressively shorter
None of these

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

linking number
none of these
twisting number
helix frequency

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DNA Structure and Replication
How does ethidium bromide interact with DNA?

It intercalates between bases
It binds to adenine
It does not interact
It binds to phosphate

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DNA Structure and Replication
TM refers to the temperature at which

50% of a protein molecules are denatured
All of these
50% of a DNA molecule is denatured
membranes are 50% fluid

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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
One
About 100
none of these

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