In humans, the fine hair gene does not completely dominate (A) over the straight hair gene (a), i.e. wavy hair is an intermediate

bystudin | September 14, 2020 | Education

In humans, the fine hair gene does not completely dominate (A) over the straight hair gene (a), i.e. wavy hair is an intermediate feature (Aa). A woman with fine hair marries a man with straight hair. Determine the genotypes of all family members by trait. What is the probability (%) of children with fine hair in this family?

1. Genotypes and phenotypes of P: both mother AA and father – aa
2. Genotypes and phenotypes of offspring: Aa – wavy hair 100%;
3. The probability of having children with fine hair is 0%.
Answer: mother – AA, father – aa, probability – 0.

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.