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Question
There are three alleles controlling the ABO blood types. IA and IB are codominant genes so that the combination IAIB produces the AB blood type. The third allele, IO, is recessive to the other two alleles. Indicate which of these parents could produce the given child:| Parents | Child | Yes or No | |
| (a) | A x AB | B | |
| (b) | A x O | A | |
| (c) | A x B | O | |
| (d) | A x AB | O | |
| (e) | A x AB | B | |
| (f) | B x B | O | |
| (g) | AB x AB | A |
Answer
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