Base Pairing Rule

Real World Example

Imagine you're trying to pair socks from a laundry basket, ensuring each sock finds its matching partner. Just like how each sock has a specific pair it fits with perfectly, in DNA, guanine always pairs with cytosine and adenine always pairs with thymine. Think of guanine and cytosine as one pair of socks and adenine and thymine as another; just as mismatched socks create chaos, mismatched DNA bases would disrupt the genetic code.