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Question

During eukaryotic transcription, a nucleotide is incorporated into the growing RNA chain with the help of

A
Hydrogen bond
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B
Ionic bond
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C
Phosphodiester bond
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D
Phosphoester bond
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Solution

The correct option is C Phosphodiester bond

During transcription, a nucleotide is incorporated into the RNA chain by making an ester bond between the 3’-OH( hydroxyl group) of RNA chain and 5’ phosphoric acid unit of incoming nucleotide. So between two nucleotides, two phosphoester bonds are present which is also known as a phosphodiester bond.

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