DNA Concentration.

What

DNA uses an alphabet of 4 letters (A, T, C, G). Its bases form complementary pairs (A ↔ T and C ↔ G). RNA uses Uracil (U) instead of Thymine (T), so the RNA pairs are A ↔ U and C ↔ G. This is the classic game of Concentration, changed to teach DNA and RNA base pairing. Switch between DNA and RNA modes to learn both!

How

Click a card, or select it and press Enter, to turn it over and show a base letter. Then turn a second card. If the two bases are a complementary pair, the cards stay face up. If not, both cards turn back. Match all the pairs to win! You can choose one of three difficulty levels and DNA or RNA mode. The server starts a timer when you press Start Game and stops it when you match the last pair. Only these server times go on the leaderboard

Why

To teach people about biology