For example, two O blood type parents can produce a child with only O blood type. Two parents with A blood type can produce a child with either A or O blood types. Two parents with B blood type can produce a child with either B or O blood type.
So, the progeny formed if both parents are of O blood group is O. The Rh factor can be positive in heterozygous state and also in homozygous state. So, there can be possibility of being both Rh positive and Rh negative.
Rh incompatibility occurs when the mother's blood type is Rh negative and her fetus' blood type is Rh positive.
The answer is yes — but only if neither parent passes along Rhesus D. The simple Punnett square here demonstrates how this is possible.
A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. This couple could have children of either blood type A (O from mother and A from father) or blood type B (O from mother and B from father).
Sometimes an incompatibility may happen when the mother is blood type O and the baby is either A or B. This can affect the newborn baby, who may need treatment after birth.
Those with blood type O may struggle to conceive due to a lower egg count and poorer egg quality, while those with blood group A seem to be more fertile.
Different blood groups rarely cause any problems, but your rhesus factor may affect future pregnancies if you're rhesus-negative and carrying a rhesus-positive (RhD-positive) baby in this pregnancy. If some of your baby's blood mixes with your blood during pregnancy or birth it can put later babies at risk.
If mom passes her O and so does dad, then the child will be OO which is O type blood. Each parent has a 50% chance of passing down the O gene. So each child has a 25% chance of ending up with an O blood type.
If the husband and wife have the same blood group, they are compatible and will not have any problems with blood transfusions . The wife is likely to have a smooth pregnancy and delivery during childbirth. Being Rh positive or negative has no effect on your health, but it may have an impact on your pregnancy.
Type O positive blood is given to patients more than any other blood type, which is why it's considered the most needed blood type. 38% of the population has O positive blood, making it the most common blood type.
A person having Rh factor in blood is called Rh positive whereas that who does not carry this protein in the blood is called Rh negative. Marriage should be avoided in between Rh negative female & Rh positive male. This can be fatal for the mother as well as the baby of such parents.
The Rh-negative blood type can pose risks during pregnancy, including increasing the risk of miscarriage or stillbirth in the second or third trimester. Nowadays, women with a negative blood group are preventively given the Rho GAM injection, to reduce the risk involved.
The need for O+ is high because it is the most frequently occurring blood type (37% of the population).
A baby may have the blood type and Rh factor of either parent, or a combination of both parents. Rh factors follow a common pattern of genetic inheritance. The Rh-positive gene is dominant (stronger) and even when paired with an Rh-negative gene, the positive gene takes over.
Explanation: O blood group person possesses two recessive alleles for determination of O blood group. Thus both parent with O group can not pass allele for antigen A to child.
If both are O positive then there is no risk.
When the blood of an Rh-positive fetus gets into the bloodstream of an Rh-negative woman, her body will recognize that the Rh-positive blood is not hers. Her body will try to destroy it by making anti-Rh antibodies. These antibodies can cross the placenta and attack the fetus's blood cells.
Rh Incompatibility in Pregnancy
Problems can occur when the mother is Rh- and the baby is Rh+. This mismatch in blood type is often referred to as Rh incompatibility. This mismatch doesn't cause any problems for the first pregnancy. But it can lead to problems in later pregnancies.
If a father's Rh factor genes are + +, and the mother's are + +, the baby will have one + from the father and one + gene from the mother. The baby will be + + Rh positive. If a father's Rh factor genes are + +, and the mother's are - -, the baby will have one + from the father and one - gene from the mother.
How Your Rh Factor Blood Type Affects Your Pregnancy. Usually your Rh factor blood type isn't an issue. But during pregnancy, being Rh-negative can be a problem if your baby is Rh-positive. If your blood and your baby's blood mix, your body will start to make antibodies that can damage your baby's red blood cells.
Of the eight main blood types, people with Type O have the lowest risk for heart attacks and blood clots in the legs and lungs. This may be because people with other blood types have higher levels of certain clotting factors, which are proteins that cause blood to coagulate (solidify).
O+ blood has no A or B antigens, and is thus “O” blood. The (+) means that the Rh antigen is present. O+ blood is very important as a (mostly) universal red blood cell type.