General Brock. Found 10 Records, 8 Photos and 1,559,932 Family Trees. Born in Princess Ann, Virginia, USA on 1761 to Noah Brock and Sally Olds. He passed away on 1779 in Niagra Falls, New York, USA. Family Members.
This because AB- type has both A and B antigens but has no Rh antigen. 2. AB Negative type is not a great donor. Again due to absence of the Rh antigen but presence of A and B antigens, the AB- blood type donor can only donate blood to AB- and AB+ blood type individuals.
The rarest phenotypic blood type is Type AB negative found in only 0.7% of people worldwide. Genetically the rarest blood type should be Type O; however, it's the most common blood type. There is more to ABO blood typing that just the ABO gene.There is also an inhibitory gene that will change any genotype into the phenotype O. Therefore a person with genetically AB blood can be tested as having Type O. positive O negative A positive A negative B positive B negative AB positive AB negative The rarest of all these blood types listed is AB negative making up 0.7% of â¦ the worlds population.