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DNA Structure and Replication

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

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

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

none of these
solenoid
kinoplast
halonoid

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DNA Structure and Replication
DNA replication results in

one new molecule of RNA
two completely new DNA molecules
two DNA molecules such that each one contains a strand of the original
one new DNA molecules 1 old molecule

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DNA Structure and Replication
Each replication bubbles consists of

2 replication forks
3 replication forks
4 replication forks
1 replication forks

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

DNA topoisomerase
DNA helicases
ligase
single stranded binding proteins

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DNA Structure and Replication
Replication in E. coli is initiated by the generation of short RNA primers using

both (a) and (b)
primase
RNA polymerase
reverse transcriptase

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