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DNA Structure and Replication

DNA Structure and Replication
An RNA primer is synthesized by

ligase
DNA helicases
primase
DNA topoisomerase

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DNA Structure and Replication
What is the only common methylation in the DNA of eukaryotes?

None of these
Guanosine in ApGpA trinucleotides
Adenosine in GpA dinucleotides
Cytosine in CpG dinucleotides

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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
Chromosomes would become progressively shorter
Nothing would happen
None of these

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DNA Structure and Replication
TM refers to the temperature at which

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

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DNA Structure and Replication
Enzymes, responsible for unraveling short segments of DNA is

helicase
primase
DNA polymerase
DNA ligase

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

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
the sedimentation coefficient

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