In addition to the proteins (agglutinogens) existing on your red blood cells, other genes make proteins called agglutinins (a-GLOO-tin-ins) that circulate in your blood plasma. Agglutinins are responsible for ensuring that only the blood cells of your blood type exist in your body.
Older children and teens are unlikely to start calling a stepmom mom or mother partly because of their fear of disloyalty to their biological mom. It is vital for all parties involved -- biological parents and stepmom -- to support their child's choice of what to call the stepmom.
A child is referred to as the stepchild, stepdaughter or stepson of their biological parent's new spouse, and that person as the stepparent, stepfather or stepmother of the child. A stepfather is the husband of one's mother and not one's natural father. A stepmother is one's fatherâs wife and not one's natural mother. Similarly, a step-brother is the son of a step-parent who one is not biologically related to.