Hospital codes refer to emergency situations, but these codes are different for each hospital. For example, “code blue” may refer to a life threatening medical emergency. Other codes refer to a fire, ...

How can just four nitrogenous bases--adenine, cytosine, guanine, and uracil--possibly code for all 20 amino acids? Thus, early researchers quickly determined that the smallest combination of As, Cs, ...

Introduction If you need to send a secret message to a friend, how could you prevent other people from reading it? One way is to encrypt the message—that is, use a secret code that only you and your ...