(A transfusion of normal group O blood can trigger a severe transfusion reaction.). Because the H antigen is the precursor of the ABO blood group antigens, if it is not produced, the ABO blood group antigens are also not produced.f a person has blood group O, the H antigen remains unmodified. Therefore, the H antigen is present in the highest amounts in blood type O and in the least amounts in blood type AB. Two regions of the genome encode two enzymes with very similar substrate specificitiesâthe H locus (FUT1) and the Se locus (FUT2).
Today, very little honey is produced as comb honey. Comb honey is raw pure honey sections taken straight from the hive â honey bees' wax comb with no further handling at all. It is the most unprocessed form in which honey comes -- the bees fill the hexagon shaped wax cells of the comb with honey and cap it with beeswax.
Four ways to spot artificial honey. 1  The Thumb Test â Put a drop of the honey on your thumb. 2  The Water Test â Fill a glass of water and add one tablespoon of âhoneyâ into the water. 3  The Shelf Life Test â Pure honey will crystallize over time. 4  Light a Fire â Dip the tip of a matchstick in âhoneyâ, and then strike it to light.