Biology 0610 · IGCSE · Monohybrid inheritance

Monohybrid inheritance — practice question

Fig. 8.1 depicts a cat with an inherited condition that gives the cat extra toes. The allele responsible for this condition is dominant over the allele for the normal condition. Fig. 8.2 illustrates the inheritance of this condition in a family of cats.
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Complete Table 8.1 by giving the genotypes of the numbered individuals. Use B to represent the dominant allele and b to represent the recessive allele.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: The genotype of individual 1 is bb.

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