DNA and RNA might look alike, but they are quite different in how they are built and what they do.

1. Structure:

• DNA is like a twisted ladder, which we call a double helix. It has two strands.
• RNA usually has just one strand.
• The sugar in DNA is called deoxyribose, while in RNA, it is called ribose.
• DNA uses four bases: adenine (A), thymine (T), cytosine (C), and guanine (G). RNA has a slight change and uses uracil (U) instead of thymine.

2. Function:

• DNA's main job is to store and pass on genetic information. It is like the instruction manual for all living things.
• RNA has an important role in making proteins. It acts as a messenger between DNA and ribosomes, which are the parts of the cell that build proteins.

These differences are really important for how living things work and grow!