. In mice, the dominant allele Gs of the X-linked geneGreasy produces shiny fur, while the recessive wildtype Gs+ allele determines normal fur. The dominantallele Bhd of the X-linked Broadhead gene causesskeletal abnormalities including broad heads andsnouts, while the recessive wild-type Bhd+ alleleyields normal skeletons. Female mice heterozygousfor the two alleles of both genes were mated withwild-type males. Among 100 male progeny of thiscross, 49 had shiny fur, 48 had skeletal abnormalities,2 had shiny fur and skeletal abnormalities, and 1 waswild type.a. Diagram the cross described and calculate thedistance between the two genes.b. What would have been the results if you hadcounted 100 female progeny of the cross?
. In mice, the dominant allele Gs of the X-linked gene
Greasy produces shiny fur, while the recessive wildtype Gs+ allele determines normal fur. The dominant
allele Bhd of the X-linked Broadhead gene causes
skeletal abnormalities including broad heads and
snouts, while the recessive wild-type Bhd+ allele
yields normal skeletons. Female mice heterozygous
for the two alleles of both genes were mated with
wild-type males. Among 100 male progeny of this
cross, 49 had shiny fur, 48 had skeletal abnormalities,
2 had shiny fur and skeletal abnormalities, and 1 was
wild type.
a. Diagram the cross described and calculate the
distance between the two genes.
b. What would have been the results if you had
counted 100 female progeny of the cross?
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