DNA and RNA are two important molecules in our cells, and they have some big differences that affect what they do.

First, let's talk about their structure.

• DNA is like a twisted ladder with two strands, while RNA is more like a single strand of pearls.

Next, we look at their sugars.

• DNA has a sugar called deoxyribose, and RNA has a different sugar called ribose.

Then there's the bases.

• DNA uses a base called thymine. In contrast, RNA uses uracil instead of thymine.

These differences make a big impact on how they work.

For example, when we talk about replication, DNA stays pretty stable, which helps it hold onto its information. On the other hand, RNA can change more easily, making it more flexible.

In transcription, RNA is made from DNA. This is an important step in using the instructions stored in DNA.

Finally, during translation, RNA helps create proteins by following the directions from DNA.

In short, DNA and RNA each have special jobs that make our cells function properly!