Gluten-Free Grains. Dr. D'Adamo explains that O blood types are the most common blood type on the planet. He warns, however, that they should avoid gluten-containing grains such as wheat and corn. Whole grains like oats and brown rice are acceptable alternatives.
DNA - (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information; DNA is the king of molecules. deoxyribonucleic acid, desoxyribonucleic acid.
The modern working definition of a gene is a portion (or sequence) of DNA that codes for a known cellular function or process (e.g. the function make melanin molecules). A single 'gene' is most similar to a single 'word' in the English language.