DNA is the primary tic material in most organisms.
DNA is the primary tic material in most organisms.
It carries the instructions for building and maintaining an organism.
RNA plays various roles in expression, particularly in protein synthesis.
Examiner Tip
Understand the fundamental difference in function: DNA stores information, RNA expresses it. Avoid confusing their roles.
The discovery of DNA's structure by Watson and Crick in 1953, building on Rosalind Franklin's X-ray diffraction data, is considered one of the most significant scientific breakthroughs of the 20th century.
