BI-1557
Genetic crosses and ratios
Biology · Secondary 4 · Medium · Genetic crosses and ratios
In humans, blood group is controlled by three alleles: , and . A woman has blood group O and her child also has blood group O.
Which blood group can the father of the child not have?
Which blood group can the father of the child not have?
- A
- B
- AB
- O
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