22. In the fruit fly, Dichaete (D) is a dominant autosomal mutation thet affects

Question

22. In the fruit fly, Dichaete (D) is a dominant autosomal mutation thet affects wing shape; n s the same chromosome. Dichaete F1 nies from a cross of dichele ebony and 1000 progeny collected A. Diagram these crosses pink were D d,(hat t e ezebon Ppink Det x Fi B. Predict the numbers of testcross progeny in each phenotypic class b 4+- Pink Ebony -Dichaete ebony D e+ Ebony pinke p Dichaete pink Dt p Dichaete ebony pink p e' p Sco E-P ((0)100-5 340 Wild type+-+- NCO 1000-a0 800-100% Total looo C. Predict phenotypic ratios from test-crosses of each of these three F2 classes: Ebony Pink 2. Dichaete ebony pink

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