Question

2. In the wizarding world, blood type works the same as it does for muggles. Ron Weasley is blood type A. His sister Ginny is blood type A, and his twin brothers Fred and George are blood type O. a. Name the potential genotypes and phenotypes that Ron’s parents Arthur and Molly could be. b. If Harry is also blood type O, what is the probability that Harry and Ginny will have a boy who is also blood type O? c. Hermione has blood type B. If she and Ron have a girl with blood type AB and a boy with blood type A, what is the genotype of Ron, Hermione and their two children?

Answer 1

Arthur - iAio

moly - iAio

Harry blood ioio ginny iaio having child with ioio is 1/2 i.e50%

hermoine- iBiO girl- iAIB, boy iAio , ron- iAIo

note- the blood group A and B are considered codominant type while O type is recessive to both. Thus hermoine and ron both are heterozygous that is containing one recessive allele for the o in thier blood.