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DNA Structure and Replication

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

none of these
kinoplast
halonoid
solenoid

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DNA Structure and Replication
An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called

helicase
reverse transcriptase
restriction endonuclease
transposase

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DNA Structure and Replication
For the DNA replication in eukaryotes, the cell cycle consists of

G1, G2 and M phases
S, G2 and M phases
G2 and M phases
G1,S, G2 and M phases

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DNA Structure and Replication
The site on a bacterial chromosome that marks the initiation point for chromosome replication is called

Ori
Pro
a promoter
an initiation codon

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DNA Structure and Replication
The RNA primers used to initiate replication in E. coli

are removed by Pol I
are joined together by DNA ligase
result in Okazaki fragments on leading strand
are removed by helicase + ATP

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DNA Structure and Replication
What does ligase do during replication of DNA?

Joins nicks in DNA strands
Digests mRNA when it is no longer needed
Synthesizes the lagging strand
Makes copies of mRNA from DNA

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MORE MCQ ON DNA Structure and Replication

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