Assignment 3 - ASI 500 Assignment 3 1 2 3 4 5 6 In leghorn...

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ASI 500 - Assignment 3 In leghorn chickens, white feathers (allele W) are dominant to colored feathers (allele w). Suppose a chicken homozygous for white is crossed with a chicken homozygous for colored. 1. Determine the phenotypes of the F1 birds. a. ¾ white, ¼ colored b. All colored c. All white d. ½ white, ½ colored 2. The F1 birds are intercrossed to produce F2 birds. Determine the phenotypes of the F2. 3. Determine the phenotypes of the offspring of a backcross of the F1 birds to the colored parent a. ¾ white, ¼ colored b. All colored c. All white d. ½ white, ½ colored 4. Determine the phenotypes of the offspring of a backcross of the F1 birds to the white parent a. ¾ white, ¼ colored b. All colored c. All white d. ½ white, ½ colored 5. Genes on the X, Y, Z, or W chromosome are: a. Sex linked b. Sex limited c. Sex influenced 6. Freckles are caused by an autosomal dominant allele. A man has freckles but one of his parents does not have freckles. The man has fathered a child with a woman that does not have freckles.
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