Wednesday, August 10, 2011

Biology Question?

In the fruit fly Drosophila melanogaster, vestigial wings and hairy body are produced by two recessive genes located in different chromosomes. The normal alleles, long wings and hairless body, are dominant. What are the genotype and phenotype of F1 progeny obtained from a cross between a vestigial-winged, hairy male and a normal, zygous female. If the F1 from this cross are permitted to mate randomly among themselves, what phenotypic ratio would be expected in the F2 generation?

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