Justify: Sugars are connected by phosphodiester bonds?

Answer 1

In nucleic acids Sugar Back bones are connected with Phosphodiester bonds.

IN simple terms -OH attached to the 3' C in the sugar backbone of the nucleic acid is available for nucleophilic attack by another incoming base phosphate group which removes diphosphate as a by product and then forms a diester bond between the 3' C of sugar with the incoming Bases phosphate group.

Following is a mechanism for the same

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Answer 2

Vivian Aronson

Sugars are not connected by phosphodiester bonds. Phosphodiester bonds are found in nucleic acids, such as DNA and RNA, where they link the sugar backbone to the phosphate group. Sugars in carbohydrates are connected by glycosidic bonds.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.