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DNA Structure and Replication

DNA Structure and Replication
Proteins involved in opening a replication bubble are

DNA topoisomerase
ligase
DNA helicases
single stranded binding proteins

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DNA Structure and Replication
An RNA primer is synthesized by

ligase
DNA topoisomerase
DNA helicases
primase

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DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

100 °C
60°C
70 °C
90 °C

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DNA Structure and Replication
DNA helicase is used to

break a phosphodiester bond in DNA strand
unwind the double helix
None of these
interact the double helix closely

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

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DNA Structure and Replication
Which of the following in DNA replication and transcription are common?

synthesis in the 5'-3' direction
utilization the same enzyme
incorporation of deoxynucleotides
None of these

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