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Pure-breeding affable flies are crossed to pure-breeding striped flies

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assignment.docx Download Attachment;1. Pure-breeding affable flies are crossed to pure-breeding striped flies. The F1 flies are all;striped. (Both of these genes are autosomal and linked.);Which trait(s) are dominant?;The F1 females are test-crossed with the following results;affable 99;striped 101;affable striped 102;wildtype 98;What is the linkage arrangement of the F1 flies (coupling or repulsion)?;What is the phenotype of the test cross males?;What is the map distance between these genes?;What would be the ratio if the F1 males were test-crossed?;2. Diagram the expected progeny in the following cross, where M represents an unknown;dominant mutant;Genotype Cy M+, D males X Cy+ M+, D+ females;Cy+ M D+;Cy+ M+ D+;Phenotype?;What would be the outcome if the above males were crossed to females homozygous for;M?;3. m is a recessive unknown autosomal mutant. F1 males of the phenotype curley and;dichaete (from a cross of Cy/Pm, D/Sb X m/m) are backcrossed to m/m females. The;progeny phenotypes are listed below. On which chromosome is m located?;Progeny;Curly Dichaete;Curly "m;dichaete;m;4. m is a recessive unknown autosomal mutant. F1 males of the phenotype Cy D (from a;cross of Cy/Pm, D/Sb X m/m) are backcrossed to m/m females. The progeny;phenotypes are listed below. What chromosome is m located on?;Progeny;Curly Dichaete "m;Curly Dichaete;Curly "m;Curly;Dichaete "m;Dichaete;m;wild type

 

Paper#17980 | Written in 18-Jul-2015

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