passwella.
Menu

WAEC Biology 1993 Question 53

Question 53

Mendelian Inheritance

Study the genetic cross below showing the inheritance of blood groups.
From the cross above which of the following F offspring does not belong to the father?

Diagram for this question
  1. A.AA
  2. B.AO
  3. C.OB
  4. D.OO
  5. E.AB
Show the answer and explanation

Answer: D (OO)

Explanation

Father (A, B) × mother (A, O) gives AA, AO, AB and BO; every child gets A or B from the father, so OO is impossible.