Yes, it is possible for both mother and father to be RH positive and a child to be RH negative.
no. The possible blood types of an offspring are A, B, and AB. in order to have a recesive gene have a possibility of appeaing in the child oth the mother and father must carry the gene.
No. Rh negative is a recessive gene. Positive people do not carry it.
Must be AA, or AO because the mother having O blood, which is homozygous recessive, must be OO. The signs mean little here except the father must carry them and the child inherited them from the father.
a 49.99/49.99 chance of the blood type of either the mother or fathers, or a .02% chance of a defect..
It depends on if one or both parents carry type O. If they do not, then the only type will be AB. If they do carry O, then the offspring can be AO, AB, BO or OO.
Yes. If the mother and father both carry O blood type it will be hidden by their A and B blood types. The same goes for the Rh factor the negative can still be carried by the parents but again will be hidden. They can pass these genes to their children.
No it is not possible for a male child to have a father that died three years before he was born. It takes nine months for the mother to carry and have the baby delivered in the maternity ward.
Only if the father is a false O, but it's extremely rare. It's what happens when for some reason he doesn't produce the protein - in the case of your example, type A). As for the negative, both parents have to carry at least one gene for it.
The umbilical cord contains blood vessels which carry substances to and from the placenta and thence from the mother.
by your mother having sex with your father
After the mother sea horse lays her eggs she gives them to the father to carry them around.
If you mean blood types, yes. If both parents carry the recessive "O" blood gene there is a 1 in 4 chance each child could be type O. If you can find out the blood types of the parents' parents and even the grand parents you can narrow it down (sometimes). If you can eliminate the possibility that the "father" carries a recessive "O" he would be eliminated as a possible parent.