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# Probability Assumptions in Mating Pedigrees

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(see diagram in the attached file)

Answer the following questions based on the assumption that genotypes BB and Bb have brown eyes, while bb has blue eyes. Filled in the symbols in the pedigrees that represent blue eyes.

a) What is the probability that the first child of a mating between II-2 and II-7 would be a blue-eyed girl?
b) What is the probability that the first child of a mating between II-3 and II-8 would be blue-eyed?
c) What is the probability that II-6 is homozygous?
d) What is the probability that the first child of II-3 and II-8 would be a brown-eyed boy?

##### Solution Summary

The expert examines probability assumptions in mating pedigrees. The probability of a child having blue and brown eyes is determined.

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COMMENT FROM STUDENT;
Hi, thanks for the guidance. However, I am still confused with part b) how many combinations are there?

UPDATE FROM OTA;
The details you need are as follows:
Part b)
What is the probability that the first child of a mating between II-3 and II-8 would be blue eyed?
Blue ...

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