Multiple Alleles

allele

a form of a gene which codes for one possible outcome of a phenotype

MOI: Simple dominance

2 alleles 2 phenotypes

MOI: incomplete dominance or codominance

2 alleles 3 phenotypes

lethal trait

2:1 ratio

2 alleles 2 phenotypes

A B O Blood Type

controlled by three alleles

Type A and its proteins

makes A proteins→ anything thats not type A protein is recognized as not outs→ we make Type B antibodies (anything thats type B will be attacked)

what is the universal donor type blood?

type O

relationship of A or B to O?

simple dominance

relationship of A to B?

codominance

Rh factor

specific antigens (D-antigen) on the surface of RBCs

MOI for Rh factor

dominance (Rh+ over Rh-)

MN Cell surface antigen

specific antigens (L-antigen) on the surface of RBCs

MOI for MN cell surface antigen

codominance