alleryThe ABO blood-group system is an example of
Asingle-allele inheritance
Btwo-allele Mendelian dominance only
Cmultiple alleles with co-dominance
Dadditive polygenic inheritance
Answer & Solution
Correct answer: C. multiple alleles with co-dominance
The ABO locus has three alleles (I^A, I^B, i) in the population — multiple alleles.
I^A and I^B are co-dominant with each other, while both are dominant over i.
Each individual still carries only two alleles.
Keep practising Genetics and Evolution
Browse all Genetics and Evolution questions for AP Intermediate 2nd Year, or explore more Biology topics.
Related questions
Genotype and phenotypeDominant or recessive?NEET · Bio · Principles of Inheritance · Mendel's LawsThe Miller-Urey experiment (1953) demonstrated that:The Human Genome Project (HGP) ran from 1990 to:The Lac Operon in E. coli is INDUCED (turned ON) by the presence of:The genotypic ratio in the F₂ of a monohybrid cross between Tt × Tt isDNA base pairing.