WAEC Biology 2013 Question 51

Question 51

Mendelian Inheritance

The genotype ratio of the offspring of a hybrid is 1 : 2 : 1, which of the following laws illustrates this ratio?

  1. A.Use and disuse.
  2. B.Dominance.
  3. C.Segregation.
  4. D.Linkage.
Show the answer and explanation

Answer: C (Segregation.)

Explanation

Mendel's law of segregation says the two alleles separate into different gametes, giving 1 AA : 2 Aa : 1 aa when hybrids are crossed.