passwella.
Menu

JAMB Biology 1992 Question 41

Question 41

Mendelian Inheritance

A child with blood group genotype different from those of both parents and with a mother of genotype OO, can only have a father of genotype

  1. A.A
  2. B.B
  3. C.AB
  4. D.OO.
Show the answer and explanation

Answer: C (AB)

Explanation

An AB father and OO mother give children AO or BO, which differ from both parents. Other fathers would give at least some children like one parent.