Which of the following is incorrect about RNA?
RNA contains **ribose sugar, not deoxyribose**.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance Search for Genetic Material and RNA World
#RNA structure
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Which of the following is NOT a component of a nucleotide?
A nucleotide consists of a phosphate group, a nitrogenous base, and a pentose sugar, but not an amino acid.
Ref: NCERT Class 11 Biology Chapter 9: Biomolecules Enzyme Action and Factors Affecting Enzyme Activity
The presence of a 2'-OH group in RNA makes it:
Less stable than DNA is the accurate classification or categorization for the organism, molecule, or concept described in this question. In Nucleic Acid, proper classification is based on shared characteristics including morphological, biochemical, genetic, and evolutionary criteria. Less stable than DNA meets the specific diagnostic features and defining criteria that distinguish it from related groups. The other options (More stable than DNA, Equally stable as DNA, and More hydrophobic) belong to different taxonomic groups, represent different classification levels, or possess distinct chara
Ref: Campbell Biology, Urry et al., 12th Ed.
What is the major force driving base stacking in nucleic acids?
Hydrophobic interactions accurately defines or describes the concept asked in this question. Within Nucleic Acid, precise definitions and terminology are essential for clear scientific communication. The other options (Hydrogen bonding, Ionic bonds, and Van der Waals forces) either describe related but distinct concepts, use incorrect terminology, or confuse similar-sounding terms that have different scientific meanings. A thorough understanding of exact definitions helps distinguish between closely related biological concepts and is crucial for competitive examinations.
Ref: Campbell Biology, Urry et al., 12th Ed.