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DNA Structure and Replication

DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

twisting number
none of these
helix frequency
linking number

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DNA Structure and Replication
Which will require a higher temperature to denature?

RNA with a high A-T content
RNA with a high G-C content
DNA with a high A-T content
DNA with a high G-C content

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DNA Structure and Replication
E.coli DNA polymerases II and III lack

5' → 3' endonuclease activity
5' → 3' exonuclease activity
partially 5' → 3' endonuclease activity
partially 5' → 3' exonuclease activity

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

Pro
an initiation codon
Ori
a promoter

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DNA Structure and Replication
The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

using enzyme called telomerase
None of these
using RNA as a template
shortening of the double stranded replicated portion

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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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MORE MCQ ON DNA Structure and Replication

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