Blood Types

What cellular components are primarily responsible for determining a person's ABO blood type?

• Antibodies in the plasma

• Proteins on the surface of red blood cells

• White blood cells

• Platelets

An individual with Type A blood receives a transfusion of Type B blood. What immunological reaction would occur?

• The recipient's anti-B antibodies would attack the donor's red blood cells.

• The recipient's anti-A antibodies would attack the donor's red blood cells.

• The donor's anti-A antibodies would attack the recipient's red blood cells.

• No reaction would occur as both types are compatible.

Why is Type AB blood considered the universal recipient in the ABO blood group system?

• It contains both A and B antigens on its red blood cells.

• It lacks both anti-A and anti-B antibodies in its plasma.

• It can produce antibodies against any foreign blood type.

• It has a unique protein structure that prevents immune reactions.

The inheritance pattern for ABO blood types involves three alleles (I^A, I^B, and i) and the expression of both A and B antigens in Type AB individuals. This demonstrates which two genetic principles?

• Complete dominance and recessive inheritance

• Incomplete dominance and epistasis

• Multiple alleles and codominance

• Polygenic inheritance and linkage

A father with heterozygous type A blood (I^A i) and a mother with type O blood (ii) have children. Which of the following blood types are possible for their offspring?

• Only type A

• Only type O

• Type A and Type O

• Type A, Type B, Type AB, and Type O

A mother with heterozygous type A blood (I^A i) and a father with heterozygous type B blood (I^B i) have children. Which of the following blood types are possible for their offspring?

• Only type AB

• Type A and Type B

• Type A, Type B, Type AB, and Type O

• Only type O

If both parents are heterozygous for the Rh factor (genotype +-), what is the probability that their child will have Rh- blood?

• 0%

• 25%

• 50%

• 75%

What is the primary risk associated with an Rh- mother carrying an Rh+ fetus, particularly in subsequent pregnancies?

• The mother's blood will clot during the first pregnancy.

• The fetus's blood will become Rh- during development.

• The mother's immune system may produce antibodies that attack future Rh+ fetuses.

• The fetus will develop a severe allergic reaction to the mother's blood.