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Thomas Hunt Morgan

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description Thomas Hunt Morgan Overview

Thomas Hunt Morgan was an American geneticist whose meticulous research on *Drosophila* (fruit flies) fundamentally reshaped our understanding of heredity. His experiments demonstrated that genes are located on chromosomes and established the chromosome theory of inheritance. This work, culminating in a 1933 Nobel Prize, remains foundational to modern genetics and is particularly relevant for biologists, geneticists, and students studying evolutionary biology and molecular genetics.

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Why did Thomas Hunt Morgan use fruit flies instead of larger animals?

Morgan used Drosophila melanogaster because fruit flies breed quickly, take little space, and produce many offspring. That let his Columbia University lab track inheritance patterns across many generations in a way that would have been impractical with mammals.

What did Morgan's white-eyed fly experiment actually prove?

Morgan found a white-eyed male fruit fly and showed that the trait was linked to the X chromosome. That result gave strong experimental support to the idea that genes are physically located on chromosomes.

Why did Thomas Hunt Morgan win the Nobel Prize?

Morgan received the 1933 Nobel Prize in Physiology or Medicine for discoveries about the role of chromosomes in heredity. His work helped turn genetics from a breeding-based field into an experimental, chromosome-based science.

How did Morgan's lab connect to gene mapping?

Morgan's student Alfred Sturtevant used Drosophila data to create one of the first genetic linkage maps in 1913. The map used recombination frequency to estimate the order and relative distance of genes on a chromosome.