As you probably know, a man inheritated an X chromosome from his mother, while he inheritated a Y chromosome from his father, and a woman inheritated one X chromosome from her mother, and another one from her father.
Now, I am wondering about this, the X chromosome that either sex inheritated from his/her mother, could that be either of her X chromosomes, or is it perhaps a combination of the two?
Is it like the above example, where it would be a 50% chance of inheritating either of the mother's chromosomes.Code:XX XY XX XY | | | | \ / \ / X Y - offspring, man | OR | X Y - offspring, man
Or is it like the other example, where the mother's X chromosome is a combination of her two X chromosomes.Code:___ |XX| XY ----- | | | \ / X Y
Hope you can answer my question.
EDIT: never mind about the examples, I think you can understand my question in pure theory anyway