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Bos Taurus Base Color Genetics
To be used with Bos Taurus Base Color Genetics Power Point
- Three alleles make the base color genetics more complex list all possible phenotypes under their genotypes. Possible Allele Combinations: E D E D , E+E+, ee, E D E+, E D e , E+e
Black Wild Type Brown or Gray Red
- Fill out the Punnett Squares for all possible homozygous color crosses.
ED ED x E+ E+ E+ E+ x ee ED ED x ee
Genotypes : ___________ Genotypes : ___________ Phenotypes: ___________ Phenotypes: ___________
- Fill out the Punnett Squares for two allele homozygous / heterozygous color crosses.
ED ED x ED e E+ E+ x E+ e
Genotypes : _______%_______ Genotypes : _______% _______
_______%_______ _______%_______ _______%_______ _______%_______
Phenotypes:_______% Black Phenotypes: _______% Black
______% Wild Type _______% Wild Type ______% Red _______% Red
- Fill out the Punnett squares for two allele same genotype heterozygous color crosses.
ED e x ED e ED E+ x ED E+
Genotypes : _______%_______ Genotypes : _______% _______
_______%_______ _______% _______ _______%_______ _______%_______
Phenotypes:_______% Black Phenotypes: _______% Black
______% Wild Type _______% Wild Type ______% Red _______% Red
- Now try crosses with three alleles with a heterozygous / heterozygous cross.
ED E+ x E+ e ED e x E+ e ED E+ x ED e
Genotypes : _______%_______ Genotypes : _______% _______ Genotypes :_______% _______
_______%_______ _______% _______ _______% _______ _______%_______ _______% _______ _______% _______
Phenotypes:_______% Black Phenotypes: _______% Black Phenotypes: _______% Black
______% Wild Type _______% Wild Type _______% Wild Type ______% Red _______% Red _______% Red
