DNA is the material that carries all the information about how a living thing will look and function. In humans it determines such things as what color the eyes are and how the lungs work. Each piece of information is carried on a different section of the DNA. These sections are called genes.

There are four different bases in DNA: Adenine, Thymine, Guanine, and Cytosine. A binds T and G binds C.

Try to find hidden words using this rule of nucleotide complementarity to match letters in the correct order.