AIIMS 2018 Chemistry Nucleic Acids MCQ Question

In DNA, the sugar component is deoxyribose, which lacks one oxygen atom compared to ribose, making it deoxyribonucleic acid (DNA) instead of ribonucleic acid (RNA). This structural difference is crucial because it influences the stability and function of the nucleic acids. Since the statement claims that deoxyribose is not present in DNA, it is incorrect, thus validating option B. Other options are not applicable as they do not provide relevant information regarding the sugar composition of DNA. Understanding the distinction between ribose and deoxyribose is essential for grasping the fundamental differences between DNA and RNA.