After receiving no formal credit for working with T.H. Morgan at Columbia, he moved to the Soviet Union, where he hoped to implement a modern eugenics program.
After receiving no formal credit for working with T.H. Morgan at Columbia, he moved to the Soviet Union, where he hoped to implement a modern eugenics program. Lysenko spoiled those plans, and this scientist eventually returned to the US by volunteering for service in the Spanish Civil War. He expanded on F.A. Janssens' ideas in his doctoral thesis on "crossing over," (*) and he first gained renown for his 1927 article "Artificial Transmutation of the Gene," in which he was the first to show that x-rays induce mutations in Drosophila. He postulated in 1964 that sex is advantageous because deleterious mutations tend to accumulate in subsequent generations of asexual organisms, a theory known as his "ratchet." FTP, name this 1946 Nobel Laureate in Medicine, who shares his last name with the German discoverer of a type of mimicry.
After receiving no formal credit for working with T.H. Morgan at Columbia, he moved to the Soviet Union, where he hoped to implement a modern eugenics program.
Hermann J. {Muller}  