BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where is deoxyribose found?
A
DNA
B
RNA
C
BOTH
D
None of the above
Explanation: 

Detailed explanation-1: -deoxyribose, also called d-2-deoxyribose, five-carbon sugar component of DNA (q.v.; deoxyribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the DNA polymer and binds to nitrogenous bases.

Detailed explanation-2: -Unlike DNA, RNA in biological cells is predominantly a single-stranded molecule. While DNA contains deoxyribose, RNA contains ribose, characterised by the presence of the 2′-hydroxyl group on the pentose ring (Figure 5).

Detailed explanation-3: -Deoxyribose is generated from ribose 5-phosphate by enzymes called ribonucleotide reductases. These enzymes catalyse the deoxygenation process.

Detailed explanation-4: -Deoxyribose is a monosaccharide aldopentose sugar. It is predominantly found in the nucleic acid, DNA.

Detailed explanation-5: -DNA contains the sugar deoxyribose, while RNA contains the sugar ribose.

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