Complementary


1. Acting as a complement.

2. (genetics) of the specific parirings of the bases in DNA and RNA.

 

from: http://en.wiktionary.org/wiki/complementary

 

Think of peanut butter and jelly. They complement each other.

image by carey tilden.


by Carey Tilden
http://www.flickr.com/photos/careytilden/232361159/sizes/l/