Fact 1: Molecules of DNA are encoded with instructions that tell cells what to do.

Fact 2: DNA encodes the information for protein sequences.

Given the two facts above, answer the question "What tells a cell what to do?" with the following options: 
- electricity
 - proteins
 - A computer
 - Energy
 - nerves
 - sweating
 - heat energy
 - Energy.


 

  proteins       