Cuddly DNA soft toy.
FACTS: Deoxyribonucleic acid, or DNA, is the amazing molecular double helix that contains the genetic codes for all known life.
The human genome contains about 3 billion letters (bases), or a billion words (codons). These words, collected in 23 chromosomes, describe the more than 20,000 genes that are the substance of our bodies. Some genes take a few hundred words to describe, some take hundreds of thousands.
99% of the DNA in every individual is identical – and indeed, much of our DNA is shared with every living creature on Earth.