A common test to find the genotype of a hybrid is by:
Crossing of one F1 progeny with male parent
Crossing of one F2 progeny with male parent
Crossing of one F2 progeny with female parent
Studying the sexual behaviour of F1 progenies
Next Question
A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?