oman and man who both have normal chromosome numbers mate. Assume oogenesis and spermatogenesis with the normal separation of chromosomes. Describe the sex chromosomes in the gametes of the mother and father. Describe the possible combinations of sex chromosomes that might occur in this couple's children and the number of Barr bodies you would expect to see in somatic cells of these children. Describe the gametes made and the chromosome combinations and number of Barr bodies you would expect to see in the somatic cells of offspring if the chromosomes separate normally during spermatogenesis, but nondisjunction of the sex chromosome occurs in meiosis I of oogenesis. Sketches can be used.

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