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Thomas Hunt Morgan worked extensively with which organism to establish the chromosomal theory of inheritance and linkage?
AGarden pea (Pisum sativum L.)
BMaize plants (Zea mays var. L.)
CFruit fly (Drosophila melanogaster)
DSnapdragon flower (Antirrhinum)
Answer & Solution
Correct answer: A. Garden pea (Pisum sativum L.)
Morgan used Drosophila because of its short life cycle, easy lab culture, large progeny per mating and visible sex differences. His sex-linked crosses showed deviations from 9:3:3:1, leading to the concept of linkage.
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