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WAEC Biology 2015 Question 41

Question 41

Mendelian Inheritance

Which of the following traits is not inheritable? Ability to

  1. A.taste PTC.
  2. B.roll the tongue.
  3. C.move the ears.
  4. D.roll the eyeball.
Show the answer and explanation

Answer: D (roll the eyeball.)

Explanation

Tasting PTC, tongue rolling and ear moving are inherited traits used in genetics studies. Everyone can roll the eyeball, so it is not an inherited variation.