Phosphodiester bond in biomolecules

A phosphodiester bond is a type of covalent bond that links two nucleotides in a nucleic acid chain. It is formed by a condensation reaction between the phosphate group of one nucleotide and the hydroxyl group of the sugar molecule of another nucleotide.

Nucleic acids and phosphodiester bonds

Nucleic acids are biomolecules that store and transmit genetic information in living organisms. They are made up of nucleotides, which are the building blocks of DNA and RNA. Each nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base.

The sugar molecule in DNA is deoxyribose, while in RNA it is ribose. The phosphate group in nucleotides is responsible for forming phosphodiester bonds with the sugar molecule of adjacent nucleotides.

In DNA, the phosphodiester bond forms between the 5' carbon of one sugar molecule and the 3' carbon of the next sugar molecule in the chain. This creates a backbone of alternating sugar and phosphate molecules with the nitrogenous bases projecting out from the backbone.

Importance of phosphodiester bonds

Phosphodiester bonds are important for the structure and function of nucleic acids. They provide stability to the DNA and RNA molecules by forming a strong covalent bond between adjacent nucleotides.

In addition, the sequence of nucleotides and the phosphodiester bonds between them determine the genetic information stored in DNA and RNA. The information is encoded in the order of the nitrogenous bases and is transmitted from one generation to the next through the replication and transcription of DNA.

Conclusion

In conclusion, the biomolecule that has a phosphodiester bond is nucleic acids in a nucleotide. This bond is formed between the phosphate group of one nucleotide and the sugar molecule of another nucleotide and is important for the stability and function of nucleic acids.

In nucleic acids.... NUCLEOTIDES are linked by phosphodiester bonds... so option "C" is correct..