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JAMB Biology 1988 Question 36

Question 36

Mendelian Inheritance

If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned?

  1. A.3
  2. B.2
  3. C.1
  4. D.0
Show the answer and explanation

Answer: B (2)

Explanation

Bb × bb gives Bb and bb in equal numbers, so half of four children, 2, are expected to be dark-skinned.