Review terms involved in blood transfusions. Determine that the blood type is due to specific antigens located on the red blood cells, and that the antibodies are found within the plasma. From a chart, indicate the % of blood types found in the population. Discuss the antigen Rh factor which is a second blood typing antigen, and note the type as either Rh positive or Rh negative. Show genotype by using capital I and lower case I along with the antigen as a superscript. Example, type A allele would be I^a. State that type A and type B are co-dominant, and type O is recessive. Have Cam write the genotypes for each type, both homozygous and heterozygous.