Describe Calvin Bridges's classic study of nondisjunction of sex chromosomes, which provided support for the chromosome theory of inheritance
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Bridges performed crosses with fruit flies, tracking the sex-linked eye-color trait. Red-eyed males were crossed with white-eyed females, yielding mostly white-eyed male offspring and red-eyed female offspring. A handful of anomalous individuals proved informative: about 1/2,000 offspring were white-eyed females or red-eyed males. Karyotypic study of these anomalous individuals revealed they had suffered nondisjunction of the sex chromosomes.
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Fill in the blank(s) with the appropriate word(s).
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