BIOLOGY 109 CCBC UNIT TWO STUDY GUIDE EVALUATION 2026 TESTED ANSWERS GRADED A+

BIOLOGY 109 CCBC UNIT TWO STUDY
GUIDE EVALUATION 2026 TESTED
ANSWERS GRADED A+

⩥ Blood Type B.
Answer: Has B antigens on red blood cells and anti-A antibodies in
plasma.


⩥ Blood Type AB.
Answer: Has both A and B antigens and no anti-A or anti-B antibodies.


⩥ Blood Type O.
Answer: Has no A or B antigens and has both anti-A and anti-B
antibodies.


⩥ Universal Donor.
Answer: O negative blood can donate red blood cells to all blood types.


⩥ Universal Receiver.
Answer: AB positive can receive red blood cells from all blood types.


⩥ Antigen.

,Answer: A molecule on a cell surface recognized by the immune system.


⩥ Antibody.
Answer: A protein in plasma that binds to specific antigens.


⩥ Agglutination.
Answer: Clumping of red blood cells caused by incompatible blood
mixing.


⩥ Hemolysis.
Answer: Destruction or rupture of red blood cells.


⩥ Codominance.
Answer: Both alleles are expressed equally, like IA and IB producing
AB blood.


⩥ Recessive Allele.
Answer: An allele expressed only when paired with itself, like i for type
O.


⩥ IA.
Answer: Allele that codes for blood type A.

, ⩥ IB.
Answer: Allele that codes for blood type B.


⩥ i Allele.
Answer: Recessive allele that codes for blood type O.


⩥ Punnett Square.
Answer: A tool used to predict inheritance of traits.


⩥ Rh Factor.
Answer: Surface protein that makes blood positive or negative.


⩥ Rh Positive.
Answer: Blood has Rh antigen.


⩥ Rh Negative.
Answer: Blood lacks Rh antigen.


⩥ Hemolytic Disease of the Newborn.
Answer: Maternal antibodies attack fetal red blood cells due to Rh
incompatibility.