Gene Expression Essentials

Once a cell has decoded the information stored in DNA, it then has to act on those instructions. So how does a genetic sequence lead to the production of proteins?


Use the gene expression essentials simulator from the University of Colorado Boulder to explore the answer. (Read more about DNA sequencing in this article from Khan Academy.)


Cracking the code of DNA and understanding protein production were very important scientific discoveries. Using these discoveries, scientists have made many medical advancements, such as Dr. Flossie Wong-Staal who unraveled the genetic material of a deadly virus called HIV and discovered ways to disrupt the virus' spread.


Viruses are very simple and tiny germs. They are made of a shell of proteins surrounding some genetic material. The genetic material determines what proteins are created by a cell.