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DNA Structure and Replication

DNA Structure and Replication
Overwinding or overtightening of DNA during replication is caused and removed by

DNAb, DNA polymerase
DNAa, gyrase
Single stranded protein, DNAa
DNAb, gyrase

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DNA Structure and Replication
In DNA replication, one new strand is synthesized complementary to an old (parent) strand and is referred as

semiconservative
mutational
discontinuous
antiparallel

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

DNA helicases
single stranded binding proteins
DNA topoisomerase
ligase

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DNA Structure and Replication
The accepted hypothesis for DNA replication is

evolutionary theory
dispersive theory
semi-conservative theory
conservative theory

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

fluorescence in UV light
comparison with a molecular weight standard such as Hind III digested phage lambda
the time it takes the gel to run
the sedimentation coefficient

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

Telomerase
DNA ligase
Primase
DNA polymerase

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