How Does A Level Biology Revision "Nucleotides Work?

Nucleotides are like tiny building blocks that help make important messages inside our bodies.

Imagine you're making a tower out of colored bricks, each brick is like a nucleotide. Just as different colors can make different patterns, nucleotides come in different types and help create special messages called DNA and RNA.

Each nucleotide has three parts:

• A sugar (like the base of your brick),
• A phosphate group (like a sticker on top),
• And a base (like the color of your brick).

These bases can be like letters in a word. There are four main types of bases, A, T, C, and G, that pair up with each other. It’s like how some people always sit together at lunchtime.

When these nucleotides link together, they form long chains, just like stacking bricks to build a tower. These chains help send messages inside your body so you can grow, heal, and do all the amazing things you do every day!