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Unformatted text preview: tra-1 XX hermaphrodite NA XO male tra-1(e1575) XX female dominant XO female dominant tra-1(e1099) XX male recessive XO male recessive ______________________________________________________ Consider the following cross: Po XX tra-1 (e1575)/tra-1(wild type) X XO tra-1 (e1099) / tra-1(e1099) A. What is the phenotype of the XX tra-1 (e1575)/tra-1(wild type ) heterozygote? Circle one Male Female Hermaphrodite B. What fraction of F1 progeny will be male? Circle one All none C. Which sex do you think the tra-1 gene is normally expressed? Circle one Hermaphrodite Male...
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- Spring '08