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DNA Structure and Replication

DNA Structure and Replication
Proteins which help to open the double helix for DNA synthesis are

DNA helicases
ligase
DNA topoisomerase
single stranded binding proteins

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DNA Structure and Replication
The most common liquid volumes in molecular biology are measured in

μl
1
ml
nl

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DNA Structure and Replication
In DNA double helix, the two DNA chains are held together by

covalent bonds between the pair of bases
hydrogen bonds between the pair of bases
None of these
ionic bonds between the pair of bases

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DNA Structure and Replication
The role of primase is to

synthesize an RNA primer to begin the elongation process
cleave and unwinds short sections of DNA ahead of the replication fork
proofread base pairing
dismantle RNA primer

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DNA Structure and Replication
Which is the largest among the followings?

Carbon
Nucleotide
Nitrogenous base
Phosphate

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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
phage DNA was similar to bacterial DNA
proteins and DNA were responsible for heredity
DNA was responsible for heredity

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