Biology 5090 · O Level · Inheritance

Inheritance — practice question

The diagram illustrates the inheritance of the allele, E, for polydactyly (having extra fingers), which is dominant to the allele for no extra fingers, e. What genotypes do persons M and N have?

  • AM: EE, N: ee
  • BM: Ee, N: Ee
  • CM: Ee, N: ee
  • DM: ee, N: ee

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI