Skip to content

#ribose

4 public questions tagged with this topic.

DNA

The sugar in RNA is:

β-D-Ribose is the scientifically accurate answer to this question. Within the study of Nucleic Acid, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of β-D-Ribose directly address what is being asked. Among the other options, α-D-Ribose, α-D-Deoxyribose, and β-D-Deoxyribose do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.

Ref: Campbell Biology, Urry et al., 12th Ed.

Which sugar is a precursor in nucleotide synthesis?

Structural role in extracellular matrix is the correct answer because it serves as the specific precursor, synthetic product, or metabolic intermediate described in this question. Biosynthetic pathways in Carbohydrates follow precise enzymatic steps where specific substrates are converted to products through regulated metabolic reactions. Structural role in extracellular matrix occupies a key position in this metabolic pathway due to its chemical structure and reactivity. The other options (Energy storage, Formation of peptide bonds, and Regulation of lipid metabolism) are involved in different biosynthetic routes, serve as precursors for different end products, or participate in unrelated metabolic conversions.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 7

The sugar moiety in DNA differs from that in RNA by:

Absence of an oxygen at C-2 in DNA is the scientifically accurate answer to this question. Within the study of Carbohydrates, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Absence of an oxygen at C-2 in DNA directly address what is being asked. Among the other options, Presence of an extra oxygen in DNA, Presence of an amino group in RNA, and Presence of sulfation in DNA do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 7