rare
No.
yes
Probably, because it only takes one positive gene to have positive type blood. But if the positive parents each have one positive and one negative gene, there is a 25% chance their child will be negative.
If one of the parents is A positive, the child could be A positive.
Rh is not a blood type by itself but is just one part of what makes up a blood type. There are two parts to blood typing: the ABO aspect and the Rh factor. One has blood type A, B, AB, or O, AND then is either Rh positive, or Rh negative. Hence why you hear blood types like A positive, O negative, etc. The positive/ negative is referring to the Rh factor. Rh positive is dominant, so one only needs one Rh positive parent so be Rh positive. Rh negative is recessive. If both parents are Rh negative, the child they have must be Rh negative as well. To know what blood type you could be, you need to know your parents' entire blood type.
Yes! Parents have two genes for pos/neg blood type, and only one of them needs to be positive for the parent to have positive blood type. Most positive-blooded people have one positive gene and one negative gene. If both positive parents pass on their negative gene, they can have a child with a negative blood type.
yes they can
yes.
No.
most probably not.
yes
Probably, because it only takes one positive gene to have positive type blood. But if the positive parents each have one positive and one negative gene, there is a 25% chance their child will be negative.
If one of the parents is A positive, the child could be A positive.
There is 50% that children will be of negative blood type if parents are heterozygous positive. 25% if one parent is homozygous and other heterozygous. 0% if both homozygous.
it is possible but the child can be a positive
If both parents have Type B blood the only blood type the child can have is either B or O not looking at whether one of the parents is negative or not.
Can a child with RH neg blood come from parents that are A positive and A negative