THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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carbon carbon double bond
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hydrogen bond
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phosphodiester bond
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disulfide bond
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Detailed explanation-1: -A phosphodiester bond is a linkage in which 3’ phosphate group of a nucleoside is linked to the 5’ hydroxyl group of another nucleoside. The direction is always from the 3’ to 5’ in nucleotides.
Detailed explanation-2: -DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the adjacent nucleotide.
Detailed explanation-3: -In chemistry, a phosphodiester bond occurs when exactly two of the hydroxyl groups ( −OH) in phosphoric acid react with hydroxyl groups on other molecules to form two ester bonds. The “bond” involves this linkage C−O−PO−2O−C.
Detailed explanation-4: -A phospodiester bond is a covalent bond in which a phosphate group joins adjacent carbons through ester linkages. The bond is the result of a condensation reaction between a hydroxyl group of two sugar groups and a phosphate group.