Question

Phosphodiester bonds and peptide bonds share an important feature. What is it? A. Both are created...

Phosphodiester bonds and peptide bonds share an important feature. What is it?

A. Both are created by dehydration reactions

B. Both are found in proteins

C. Both are used to store high-energy electrons

D. Both are cleaved by signal peptidase

E. Both are post-translational modifications of proteins in the Golgi

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Answer #1

An amide bond, also known as a peptide bond, is essentially formed between two amino acid monomers linking them covalently. A water molecule is released in this reaction.

On the contrary, a phosphodiester bond is formed between the 3' carbon atom of one sugar molecule and the 5' carbon atom of another sugar molecule in deoxyribose of DNA and ribose in RNA. Although, this reaction occurs between two ester groups, there is release of a water molecule.

Hence, the common thing between these two reactions is that both are dehydration reactions.

Hence, option (A) is correct.

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