Drosophila melanogaster treated with LSD: absence of mutation and chromosome breakage.

Injection of lysergic acid diethylamide in Drosophila melanogaster males induced no mutations or chromosome breaks in premeiotic, meiotic, or postmeiotic sperm. Tests included those for sex-linked lethals, sex-linked visibles, a specific visible (dumpy), and translocations. Some implications of these experiments are discussed.