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JAMB Biology 2001 Question 38

Question 38

Mendelian Inheritance

Both recessive and dominant characters are found

  1. A.on different chromosomes in the cell
  2. B.at the same locus of a homologous chromosome
  3. C.at different loci of a homologous chromosome
  4. D.on the same chromatid in a chromosome.
Show the answer and explanation

Answer: B (at the same locus of a homologous chromosome)

Explanation

Dominant and recessive alleles of a gene occupy the same position (locus) on a pair of homologous chromosomes.