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WAEC Biology 2025 Theory — Question 14

Question 14 of 21 from the West African Examinations Council (WAEC) Biology 2025 Theory paper, with the correct answer and a full explanation.

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4(b)(i) Define the term genotype. (ii) List two factors that could cause variation in a character within the same species.

Model answer

(i) Genotype is the genetic constitution (the set of alleles) an organism possesses for a particular trait. (ii) Factors causing variation within species: Mutation; Environmental influences; Genetic recombination during meiosis (any two).

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