Question

Write the important structural differences between DNA and RNA.

Answer 1

DNA	RNA
The sugar moiety in DNA molecules is β-D-2 deoxyribose.	The sugar moiety in RNA molecules is β-D-ribose.
DNA contains thymine (T). It does not contain uracil (U).	RNA contains uracil (U). It does not contain thymine (T).
The helical structure of DNA is double-stranded.	The helical structure of RNA is single-stranded.
DNA molecules are very large.	RNA molecules are much smaller.