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JAMB Biology 2009 Question 42

Question 42

Mendelian Inheritance

In Mendelian inheritance, discontinuous characters are controlled by the

  1. A.centromeres
  2. B.alleles
  3. C.chromosomes
  4. D.chromatids
Show the answer and explanation

Answer: B (alleles)

Explanation

Discontinuous characters fall into clear groups, such as tall or dwarf. Each is controlled by alleles of a single gene, one dominant and one recessive.