Question

Before the structure of DNA was discovered, the proportion of adenine and thymine in DNA was always found to be identical. The same was not true for adenine and uracil in RNA. Based on this, infer the structural differences between DNA and RNA.

Answer 1

Answer:

DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.