NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Nucleic acids bond together via a ____ bond
A
phosphodiester
B
peptide
C
glycosidic
D
hydrolysis
Explanation: 

Detailed explanation-1: -Phosphodiester bonds are ester bonds that form between sugar and phosphate to form the backbone of nucleic acids. Phosphodiester bond function is crucial to stabilize the structure of DNA and RNA. DNA and RNA are responsible for the inheritance of genetic material and protein expression.

Detailed explanation-2: -Phosphodiester bonds are the backbone of the strands of nucleic acid present in the life existing on Earth. Phosphodiester bond is formed when exactly two hydroxyl groups in phosphoric acid react with a hydroxyl group on other molecules forming ester bonds.

Detailed explanation-3: -Q: What bonds are found in nucleic acids? Nucleic acids DNA and RNA have both phosphodiester and hydrogen bonds linking them. The phosphate group of the DNA and RNA get linked with the adjacent carbon atoms to form an ester linkage leading to the formation of a phosphodiester bond.

Detailed explanation-4: -When nucleotides are incorporated into DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5’ phosphate group of one nucleotide and the 3’-OH group of another (see below). In this manner, each strand of DNA has a “backbone” of phosphate-sugar-phosphate-sugar-phosphate.

Detailed explanation-5: -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.

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