The classes you'll need to take earn an associate's degree will vary depending on the type of program in which you've enrolled. Typically, you'll need to take around 60 credit hours and meet your program's general education and concentration requirements. All associate's degree programs are similar in structure.
Start codon. The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met (fMet) in prokaryotes. The most common start codon is AUG.
4. Each set of 3 bases on the mRNA is called a codon. Each codon calls for a specific amino acid to be brought to the building site. The first codon is always AUG, so it is called the start codon. 5. In the cytoplasm are molecules of tRNA.