Although the Genetic Code Is Nearly Universal, Some Variations Do

Short Answer

Although the genetic code is nearly universal, some variations do exist. In vertebrate mitochondria, UGA codes for Trp (instead of termination), AUA codes for Met (instead of Ile), and AGA and AGG are stop codons (instead of coding for Arg). Translate the following coding strand DNA sequences using both the standard code and the vertebrate mitochondrial code.
a. 5' ATGGCCATAAGATGA 3'
b. 5' ATGGGGGATCGCTAA 3'
c. 5' ATGTGATGGCATCTTATAAATTGATAA 3'