DNA Model

DNA Model

STEP 1: mRNA is transcribed from a DNA template by RNA polymerase

STEP 2:An enzyme activates tRNA by attaching a specific amino acid to each tRNA.

STEP 3: tRNA add their amino acids to the polypeptide chain as the mRNA moves through the ribosome one codon at a time. When a stop codon is reached translation terminates and the polypeptide is released

Guanine

Cytosine

Thymine

Adenine