<h2> hope it helps.</h2><h2>stay safe healthy and happy.</h2>
She would find oxygen (O2) in the test tube because plants give off oxygen
Answer:
If the child has blood type OO and his mothes has AO type, the father must have O in his genotype: A(AO), B(BO), O(OO). The male phenotype AB exclueds him as father.