If your dropping of the genes resulted in two "XX" chromosomes turning face up, then you are the very lucky parents of a little girl. The Mom contributed one "X" and the Dad the other "X".	Its a Girl!
If your dropping of the genes resulted in an "Xy" combination of chromosomes turning face up, then you are the very lucky parents of a little boy. The Mom contributed one "X" and the Dad the "y" chromosome.	Its a Boy! Back to Front Page Back to Teacher's Information Page Back to Student's Instructions and Materials Back to Genotype -> Phenotype Classroom Booklet