Thomas Morgan (American geneticist)

Thomas Morgan was an influential American geneticist best known for his work on fruit flies (Drosophila melanogaster). His research demonstrated that genes are located on chromosomes, which are structures within cells that carry genetic information. Morgan's experiments provided key evidence supporting the chromosome theory of inheritance, connecting genes to specific locations and traits. His work laid the foundation for modern genetics, helping us understand how traits are inherited and how genes are mapped within the genome. His contributions earned him the Nobel Prize in Physiology or Medicine in 1933.