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    Expected offspings from block and tortoiseshell female

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    In cats, yellow coat color is determined by the b allele, and black coat color is determined by the B allele. The heterozygous condition results in a coat pattern known as tortoiseshell. These genes are x-linked. What kinds of offspring would be expected from a cross of black male and a tortoiseshell female? What are the chances of getting a tortoiseshell male?

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    Sex is determined by two chromosomes, X and Y. Females are XX and males are XY (see attached word document). So, a male black cat would have one X(B) allele and one Y. The ...

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    The expert examines the expected offsprings from block and tortoiseshell females.