Test Cross to Check Genotype If an organism shows the dominant phenotype, then one of its genes has to be the dominant allele, but you cannot be sure of the identity of the other allele unless you do a test cross to see if the dominant parent will breed pure. Let's pretend that you are in the dog-breeding business. You know that long hair on a "pooch hound" is a dominant allele and short hair is recessive. You purchase a male long-haired "pooch hound." How do you figure out if your male "pooch hound" is homozygous or heterozygous for long hair? Which genotype of female should you breed him to? If a proper test cross is used, what phenotypes of puppies would see if your male dog is heterozygous you dominant? What puppy phenotypes would you see if your male dog is homozygous dominant?. Complete the Punnett Square to show the test cross that would convince someone that your "pooch hound" is homozygous for long hair.
Test Cross to Check Genotype If an organism shows the dominant phenotype, then one of its genes has to be the dominant allele, but you cannot be sure of the identity of the other allele unless you do a test cross to see if the dominant parent will breed pure. Let's pretend that you are in the dog-breeding business. You know that long hair on a "pooch hound" is a dominant allele and short hair is recessive. You purchase a male long-haired "pooch hound." How do you figure out if your male "pooch hound" is homozygous or heterozygous for long hair? Which genotype of female should you breed him to? If a proper test cross is used, what phenotypes of puppies would see if your male dog is heterozygous you dominant? What puppy phenotypes would you see if your male dog is homozygous dominant?. Complete the Punnett Square to show the test cross that would convince someone that your "pooch hound" is homozygous for long hair.
Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter6: The Peripheral Nervous System: Afferent Division; Special Senses
Section: Chapter Questions
Problem 2SQE
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