You are presented with the question "What tells cells what to do?" and the following answer choices: 
- sensory neurons
 - a person's family
 - a person's lungs
 - It helps them survive
 - a person's genetic fingerprint
 - Something coming from a gland
 - a person's skin
 - absorb light energy

Now knowing that molecules of DNA are encoded with instructions that tell cells what to do and dNA DNA DNA is a person's genetic fingerprint, choose the best answer.


 

     a person's genetic fingerprint    