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JAMB Biology 2007 Question 48

Question 48

Mendelian Inheritance

Use the diagram to answer: Which of the following will be true of dog II which lost its tail in an accident if it mates with dog III?

Diagram for this question
  1. A.None of its offspring will be born without a tail.
  2. B.3/4 of its offspring will be born without tails.
  3. C.All its offspring will be born without tails.
  4. D.1/4 of its offspring will be born without tails.
Show the answer and explanation

Answer: A (None of its offspring will be born without a tail.)

Explanation

Losing a tail in an accident is an acquired character; it does not change the genes. The puppies will all be born with tails.