The X chromosome carries at least 150 genes linked to intelligence. Since the mother has two X chromosomes to pass along while the father only has one, the mother’s contribution to the child’s ...

it is highly condensed and wrapped around histones in order to fit inside of the nucleus and take part in the formation of chromosomes. Histones are basic proteins, and their positive charges ...

The X chromosome carries at least 150 genes linked to intelligence. Since the mother has two X chromosomes to pass along while the father only has one, the mother’s contribution to the child’s ...