Parents with polydactyly (six-fingered) (dominant feature (A)) had a daughter without the indicated anomaly.

Parents with polydactyly (six-fingered) (dominant feature (A)) had a daughter without the indicated anomaly. Determine the genotypes of family members for the indicated trait.

Because the daughter has five fingers – a recessive trait, which means the aa genotype, and the mother and father have six fingers – it means the parents are heterozygous (Aa) by the trait.
Answer: Mother – Aa; father – Aa; daughter – aa.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.