Final answer:
DNA and RNA are different in terms of structure, sugar, and bases. DNA is double-stranded, contains deoxyribose, and has the bases A, C, G, and T. RNA is single-stranded, contains ribose, and has the bases A, C, G, and U.
Step-by-step explanation:
DNA and RNA are both nucleic acids that are composed of nucleotides. However, they have several differences:
- Structure: DNA is double-stranded, while RNA is single-stranded. The double helix structure of DNA consists of two polynucleotide chains held together by hydrogen bonds, while RNA exists as a single stranded polynucleotide.
- Sugar: DNA contains deoxyribose, while RNA contains ribose.
- Bases: DNA contains the bases adenine (A), cytosine (C), guanine (G), and thymine (T), while RNA contains adenine (A), cytosine (C), guanine (G), and uracil (U). Thymine is replaced by uracil in RNA.