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WAEC Biology 2017 Question 47

Question 47

Chromosomes, DNA and Sex Linkage

Which of the following statements is true about mutation?

  1. A.Phenotype is not involved
  2. B.Genotype is not involved
  3. C.Artificial induction is not possible
  4. D.Genotype is involved
Show the answer and explanation

Answer: D (Genotype is involved)

Explanation

A mutation is a change in the genes or chromosomes, so the genotype is always involved. Mutations can also change the phenotype and can be caused artificially (e.g. by radiation).