In Drosophila melanogaster, sex is determined by the ratio of the number of X chromosomes to the number of haploid sets of autosomes.

Name: In Drosophila melanogaster, sex is determined by the ratio of the number of X chromosomes to the number of haploid sets of autosomes.
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In Drosophila melanogaster, sex determination is based on the X:A ratio, where X is the number of X chromosomes and A is the number of sets of autosomes. A ratio of 1.0 results in a female, while a ratio of 0.5 results in a male.

In Drosophila Melanogaster, Sex Is Determined by the Ratio of the Number