Thomas Hunt Morgan Essay
Thomas Hunt Morgan was an influential biologist and embryologist. Over the course of his career, Morgan published twenty-two books and over three hundred fifty different journal articles. He is most well-known for his work with the common fruit fly, Drosophila melanogaster. He determined that genes, coding for certain observable differences in phenotype or appearance, were carried on chromosomes, making chromosomes, and not cytoplasm, the mechanical basis of heredity. His observations in his Fly Room at Columbia University were some of the most significant of the twentieth century, as his work laid the foundations for the modern science of genetics
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More Fun Than Fun: Learning How Fruit Flies Disperse – From a Tabletop 17/03/2021
L-R: Sudipta Tung, Sutirth Dey and Abhishek Mishra, the trio that created nomadic fruit flies in their lab in IISER Pune. Photo: Sutirth Dey.
Spectacular advances in genetic technology in the past couple of decades have revolutionised our understanding of how different parts of the globe came to be occupied by
Homo sapiens. We now have evidence that
Homo sapiens evolved in Africa between 300,000 and 150,000 years ago; successfully dispersed out of Africa between 100,000 and 70,000 years ago; reached Central Asia (including India), Europe and Australia some 65,000 years ago; and reached the Americas about 16,000 years ago.