The number of alleles controlling blood groups in humans? by Sunday | Sep 7 | Biology JAMB | 0 comments A. 3 B. 4 C. 5 D. 2 Correct Answer: Option A – 3 Users Also Read These:An individual with blood group AB can receive blood…Use arrows to show the route and direction of blood…What is the probability of producing a child of…A woman with blood group A gives birth to a child…Individuals with blood group AB can donate blood to…