Question

Specific radioactive identification of ribsomal RNA can be achieved by using ${}^{14}C$ labelled

• A. Guanine
• B. Uracil
• C. Thyonine
• D. Cytosine

Answer 1

Answer: (B)

Uracil

DNA and RNA are nucleic acids. RNA is involved in protein synthesis. This process is also called translation. The sugar in RNA is ribose and the nucleotides are adenine, cytosine, guanine and uracil. The thymine in DNA is replaced by uracil. Hence RNA can be distinguished from DNA by ${}^{14}C$ labeled uracil. Thus the correct answer is option B.