Start and Stop Codons

Oct 07, 2014

40 likes | 323 Views

Start and Stop Codons. How to recognize and use them. Start Codon. Signals when to begin decoding a segment of DNA or RNA. Codes for the amino acid Methionine. Is the sequence ATG (in DNA) or AUG (in RNA). Stop Codons. Signal for the end of a DNA or RNA sequence.

loring

Download Presentation

Start and Stop Codons

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

Start and Stop Codons How to recognize and use them.
Start Codon • Signals when to begin decoding a segment of DNA or RNA. • Codes for the amino acid Methionine. • Is the sequence ATG (in DNA) or AUG (in RNA).
Stop Codons • Signal for the end of a DNA or RNA sequence. • Does not code for any amino acid. • There are three possibilities: TAG, TAA, TGA (in DNA) or UAG, UAA, UGA (in RNA).