CODOMINANCE ·
Both alleles fully expressed
un
seel
.com · ABO blood group · genotype I
A
I
B
→ type AB
antigen sites
~1–2M
genotype
I
A
I
B
phenotype
—
A antigen (GalNAc)
B antigen (galactose)
H antigen (shared substrate)
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.com · Codominance