Fact 1: Chromosomes are coiled structures made of DNA and proteins.

Fact 2: DNA is the stuff of life.

Given the two facts above, answer the question "What are the stuff of life?" with the following options: 
- rocks
 - food and shelter
 - magic
 - chromosomes
 - fossil fuels
 - insects
 - animals
 - emptiness


 

    chromosomes     