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It has a hydrogen (H) atom at position 2

Ribose and deoxyribose are monosaccharides or simple sugars. They are aldopentoses and undergo phosphorylation to form deoxyribonucleotide and ribonucleotide. They are of great biological importance that help in the formation of blueprint of an organism that is passed on to generations.

The nucleotides act as the building blocks of nucleic acids and help them to carry genetic information. Pentose sugar for RNA is ribose with 5 carbon atoms. Pentose sugar for DNA is deoxyribose.

Ribose was discovered by Emil Fischer in the year 1891. Deoxyribose was discovered by Phoebus Levene in the year 1929. Some differences between deoxyribose and ribose based on structure, IUPAC name, molar mass, chemical formula, etc. are given below.

Following are the major difference between deoxyribose and ribose:

Deoxyribose is an aldopentose sugar with an aldehyde group attached to it. This helps the enzymes present in the living body to differentiate between ribonucleic and deoxyribonucleic acid. The products of deoxyribose have an important role in Biology. DNA is the main source of genetic information in all the life forms. The DNA nucleotides comprise bases such as adenine, thiamine, guanine, cytosine.

Ribose is a pentose sugar with an aldehyde group attached to the end of the chain in an open form. The combination of ribose sugar and nitrogenous base forms ribonucleioside. This ribonucleioside when attached to phosphate group gives rise to a ribonucleiotide. It is a regular monosaccharide with one oxygen attached to each carbon atom. The ribose sugar is found in the RNA of living organisms. The RNA is responsible for coding and decoding the genetic information.   Some important links:

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It has a hydroxyl (OH) group at position 2