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March 29, 2015

Homework Help: Genetics

Posted by Iris on Wednesday, October 10, 2012 at 2:44pm.

In chickens, the Leghorn variety has white feathers due to an autosomal dominant allele. Silkies have white feathers due to recessive allele in a second gene. If true-breeding white leghorn is crossed to a true breeding white silkie, What is the expeected phenotype of the F1 generation? If member of the F1 generation are mated to each other, what is the expected phenotypic outcome of the F2 generations. Assumes that the parental generations are homozygous brown allele and the other is the homozzygous white allele. In subsequent generations, nonwhite birds will be brown.

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