Question

Name the various sugars present in RNA & DNA?

Answer 1

The phosphate is linked to the 5' carbon of the sugar in both RNA and DNA. The nitrogenous bases are adenine(A), guanine(G), cytosine(C), thymine(T), and uracil(U). Adenine and guanine are purines (contains a six membered ring of carbon and nitrogen fused to a five membered ring).

Answer 2

Both DNA and RNA are built with a sugar backbone, but while the sugar in DNA is called deoxyribose, the sugar in RNA is simply called ribose.

Explanation:

• Ribose is a simple sugar and carbohydrate with the molecular formula C₅H₁₀O₅ and the linear form structure H−−(CHOH)₄−H.
• The naturally occurring form, D-ribose, is a component of the ribonucleotides from which RNA is made, and therefore this compound is essential for the coding, decoding, regulation and expression of genes.
• Deoxyribose sugar is a sugar with a 5 carbon ring which is a sugar found in DNA.
• It is said to form the backbone of the DNA molecule.
• It is known as deoxyribose sugar because of the absence of an oxy or alcohol group at its second carbon, which is found in the case of ribose sugar.