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WAEC Biology 2002 Question 52

Question 52

Mendelian Inheritance

When Mendel crossed round seeds with wrinkled seeds of Pea Plant, what was the ratio of wrinkled seeds to round seeds in the F2 plants?

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

Answer: C (1 : 3)

Explanation

Round is dominant, so the F2 has 3 round : 1 wrinkled. Wrinkled to round is therefore 1 : 3.