An individual with XY chromosomes produces gametes where 50% have an extra sex chromosome and 50% have no sex chromosomes. Given this information, what is the probability a fertilized egg will have the genotype XO? Assume that the egg has the expected 23 chromosomes prior to fertilization. 1/3  1/2   1/8 1/4  It is not 1/3 or 1/4

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A:

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