Question

Phosphorus is present in

• A. Protein
• B. DNA
• C. RNA
• D. Both B and C

Answer 1

The correct option is D Both B and C

DNA and RNA has nitrogenous base, phosphate and sugar. The sugar, phosphorous and nitrogenous base is collectively known as nucleotide. The phosphorous acts as a backbone and helps in the formation of phosphodiester bonds. The adjacent carbons in phosphodiester bonds are linked through ester linkages. The diester bond between phosphoric acid and two sugar molecules in the DNA and RNA backbone links two nucelotides together to form oligonucleotide polymers.

So, the correct answer is option D.