BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Name of the covalent bond which holds nucleotides together.
A
Phosphodiester Bond
B
Amino Bond
C
Nucleic Bond
D
Peptide Bond
Explanation: 

Detailed explanation-1: -A special type of covalent bond called a phosphodiester bond forms between nucleotides. These phosphodiester bonds form the two strands that make up the DNA molecule.

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: -Phosphodiester bonds are covalent in nature and thus are formed by the sharing of electrons between their atoms. Moreover, the enzymes that usually break the phosphodiester bonds are called phosphodiesterase abbreviated as PDE.

Detailed explanation-4: -Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.

Detailed explanation-5: -Answer and Explanation: Nucleotides are held together by phosphodiester bonds. Phosphodiester bonds are formed by the condensation of the 3’ OH group of a sugar on one nucleotide to the 5’ phosphate group of the next nucleotide.

There is 1 question to complete.