CODON CHART
When trying to find out which mRNA codon codes for what amino acid, it is helpful to use a codon chart. Codon charts are easier to use than they look! All you have to do is take the first, second, and third letters from a codon of mRNA and follow them to the appropriate amino acid.
For example, take the codon UGC. Find the row labeled U in the "first letter" box. Then, find the column labeled G in the "second letter" box. Lastly, find row C in the "third letter" box. The amino acid coded for by UGC is Cysteine.
The codons UGA,UAA, and UAG all say "stop" on the codon chart. This just means that they don't have corresponding tRNAs . When the ribosomes encounter these stop codons on mRNA it will wait for a tRNA with the right anticodon to come over. When decoding mRNA, if you reach one of these stop codons do not skip over it or move over one letter. These are what end translation for one piece of mRNA.
For example, take the codon UGC. Find the row labeled U in the "first letter" box. Then, find the column labeled G in the "second letter" box. Lastly, find row C in the "third letter" box. The amino acid coded for by UGC is Cysteine.
The codons UGA,UAA, and UAG all say "stop" on the codon chart. This just means that they don't have corresponding tRNAs . When the ribosomes encounter these stop codons on mRNA it will wait for a tRNA with the right anticodon to come over. When decoding mRNA, if you reach one of these stop codons do not skip over it or move over one letter. These are what end translation for one piece of mRNA.
image source: http://dtc.pima.edu