What genetic material does James Watson and Rosalind Franklin have in common?
James Watson James Dewey Watson (born April 6, 1928) is an American molecular biologist, geneticist and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953 with Francis Crick and Rosalind Franklin. Watson, Crick, and Maurice Wilkins were awarded the 1962 Nobel Prize in Physiology or Medicine "for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material".
Somatotype and constitutional psychology Somatotype is a taxonomy developed in the 1940s by American psychologist William Herbert Sheldon to categorize the human physique according to the relative contribution of three fundamental elements which he termed "somatotypes." He named these after the three germ layers of embryonic development: the endoderm, (which develops into the digestive tract), the mesoderm, (which becomes muscle, heart and blood vessels) and the ectoderm (which forms the skin and nervous system). His initial visual methodology has been discounted as subjective and largely discredited, but later formulaic variations of the methodology, developed by his original research assistant Barbara Heath, and later Lindsay Carter and Rob Rempel are still in academic use.