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

Fact 2: Genes are segments of DNA molecules.

Given the two facts above, answer the question "what are encoded with instructions that tell cells what to do?" with the following options: 
- heat or cold
 - sensory neurons
 - a delta
 - gene segments
 - A Greek letter
 - to move people
 - lie detectors
 - Electrical energy


 

    gene segments     