The Genic Balance Theory, proposed by Calvin Bridges in 1926, explains the mechanism of sex determination in Drosophila. The theory states that sex is determined by the balance, or ratio, between the number of X chromosomes and the number of sets of autosomes, rather than by the presence of a Y chromosome. Genes that promote female development are on the X chromosome, while genes that promote male development are on the autosomes.
The theory of sex determination proposed to explain the complicated mechanism of sex determination in drosophila?
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