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WAEC Biology 2005 Question 48

Question 48

Chromosomes, DNA and Sex Linkage

Which of the following statements about mutation is true?

  1. A.The genotype is not affected
  2. B.The genotype is affected
  3. C.The phenotype is not affected
  4. D.It cannot be induced by artificial means
Show the answer and explanation

Answer: B (The genotype is affected)

Explanation

A mutation is a change in the genes or chromosomes, so it always changes the genotype; it can also be caused by radiation or chemicals.