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DNA Structure and Replication

DNA Structure and Replication
Which histone(s) are associated with the linker DNA of a nucleosome?

Histone H1
Histone H3
Histone H4
Histones H2A and H2B

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DNA Structure and Replication
Proteins involved in opening a replication bubble are

DNA topoisomerase
DNA helicases
ligase
single stranded binding proteins

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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
the sedimentation coefficient
fluorescence in UV light
comparison with a molecular weight standard such as Hind III digested phage lambda

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DNA Structure and Replication
Reverse transcriptase produces

RNA from DNA
RNA from RNA
DNA from RNA
DNA from peptides

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DNA Structure and Replication
The nucleosome consists of histone

hexamer and 146 bp of DNA
tetramer and 146 bp of DNA
octamer and 146 bp of DNA
None of these

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DNA Structure and Replication
What is the exact name of the classical Watson-Crick double helix DNA?

A-DNA
B-DNA
X-DNA
Z-DNA

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