Consider a true-breeding plant, AABBCC, crossed with another truebreeding plant, aabbcc, whose resulting offspring are AaBbCc. If you cross the F1 generation, and independent assortment is operational, the expected fraction of offspring in each phenotypic class is given by the expression N!/M!(N - M)! where N is the total number of alleles (six in this example) and M is the number of uppercase alleles. In a cross of AaBbCc * AaBbCc, what proportion of the offspring would be expected to contain two uppercase alleles?

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter8: Patterns Of Inheritance
Section: Chapter Questions
Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...
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Consider a true-breeding plant, AABBCC, crossed with another truebreeding
plant, aabbcc, whose resulting offspring are AaBbCc. If
you cross the F1 generation, and independent assortment is operational,
the expected fraction of offspring in each phenotypic class is given by the expression N!/M!(N - M)! where N is the total number
of alleles (six in this example) and M is the number of uppercase
alleles. In a cross of AaBbCc * AaBbCc, what proportion of the offspring
would be expected to contain two uppercase alleles?

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