Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

Stop codons are recognized by proteins called release factors, which fit neatly into the P site (though they aren't tRNAs). Release factors mess with the enzyme that normally forms peptide bonds: they …

Unlike start codons, stop codons don't correspond to an amino acid. Instead, they act as "stop" signals, indicating that the polypeptide is complete and causing it to be released from the ribosome.

The stop codons UAA, UGA, and UAG terminate translation by signaling the ribosome to release the newly formed polypeptide chain. These codons don't code for any amino acids and instead trigger …

There's a bunch of different tRNAs that each combined to specific amino acids, and on parts of those tRNA, they have what are called anti-codons. That pair with the appropriate codon.

These stop codons, UAA, UAG, and UGA, tell the cell when a polypeptide is complete. All together, this collection of codon-amino acid relationships is called the genetic code, because it lets cells “decode” …

Silent mutations do not affect the sequence of amino acids during translation. Nonsense mutations result in a stop codon where an amino acid should be, causing translation to stop prematurely. Missense …

Nonsense Mutations can be represented in a similar format as missense mutations, but the mutation results in a stop codon instead of an amino acid. R196X indicates that arginine (R) at position 196 …

The steps we just talked about are pretty similar to what happens to RNA transcripts in the cells of your body. In humans and other eukaryotes, a freshly made RNA transcript (hot off the RNA polymerase …

We tend to think of bacteria as simple. But even the simplest bacterium has a complex task when it comes to gene regulation! The bacteria in your gut or between your teeth have genomes that contain …