What is an exome?

The human genome consists of 3 billion nucleotides or “letters” of DNA. Only a small fraction, about 1.5% of the genome, contains genes that encode proteins, which control various functions in the body.  Much of what we know about genetic disorders are based on these genes, or what we collectively called the exome.  An exome contains more than 22,000 genes.

• The Rainbow whole exome sequencing tests analyze over 22,000 genes, and provide clinical reports that are based on clear medical evidence.