CAIE IGCSE Biology 17.4.15 Inheritance of Abo Blood Groups Questions
Practise explaining ABO blood-group inheritance using the A, B, AB and O phenotypes and the Iᴬ, Iᴮ and Iᵒ alleles.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- identify the A, B, AB and O blood-group phenotypes and the alleles Iᴬ, Iᴮ and Iᵒ
- explain ABO inheritance using the relationship between Iᴬ, Iᴮ and Iᵒ alleles
CAIE IGCSE Biology 17.4.15 Inheritance of Abo Blood Groups Questions question 1
Fig. 6.1 is a photomicrograph of a blood clot.
Fig. 6.1
There are four blood group phenotypes A, B, AB and O in humans.
State the two possible genotypes for a person who has the phenotype blood group A .
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