Question

Select the incorrectly matched pairs.

• A. Purines - Nitrogenous bases cytosine, thymine and uracil
• B. Recombinant DNA - DNA formed by joining the DNA segments from two different sources
• C. rRNA - RNA found in ribosomes
• D. ATP - The energy-carrying compound in the cell

Answer 1

Answer: (A)

Nitrogen bases purines are double ringed compound which includes adenine and Guanine. Cytosine, thymne and uracil are single ringed compounds which are pyrimidines. rRNA are ribosomal RNA which combines with protein to form ribosomes. ATP is energy currency of the cell in which energy is carried in high energy phosphate bonds.