This week's artwork was donated by Morgan , a pediatric cancer patient who received treatment at The Children's Hospital of Philadelphia .
Genes are nature's blueprints for every living thing.
Genes determine how your body will function and grow, as well as the color of your hair and eyes. Some genes do not function properly because there is a mistake in them. If a gene has a mistake, it is said to be mutated or altered . In fact, all people have altered forms of some genes. Some alterations can increase your risk for certain illnesses such as cancer.