* Adenine (A) pairs with Uracil (U)

* Guanine (G) pairs with Cytosine (C)

This is different from DNA, where Adenine pairs with Thymine (T). RNA uses Uracil instead of Thymine.

Remember that these base pairings are crucial for the structure and function of RNA molecules. They help maintain the double helix structure and also play a vital role in protein synthesis.