Question

у человека полидактилия наследуется как доминантный признак,а альбинизм рецессивный признак.В семье мать страдала полидактией,а отец был альбиносом,родилась пятипалая дочь и сын,страдающий полидактией.Какова вероятность рождения в этой семье здоровых детей и детей страдающих двумя болезнями?ПООООМОООГИИИИ ТЕЕЕ ПЛИИИИЗЗЗ

Answer 1

Вероятность рождния здоровых детей 25%, страдающих двумя болезнями 25%. Смотри решение.

Answer 2

Understanding Inheritance Patterns

In this scenario, we are dealing with the inheritance of polydactyly as a dominant trait and albinism as a recessive trait. Let's calculate the probability of having healthy children and children affected by both conditions in this family.

Inheritance Patterns

- Polydactyly: This condition is inherited as a dominant trait. - Albinism: Albinism is inherited as a recessive trait.

Parents' Genetic Makeup

- The mother has polydactyly, indicating that she has at least one dominant allele for polydactyly. - The father is an albino, meaning he has two recessive alleles for albinism.

Children's Genetic Makeup

- The daughter is unaffected by either condition, so she must have inherited two normal alleles. - The son has polydactyly, so he inherited at least one dominant allele for polydactyly.

Probability Calculation

The Punnett square can be used to calculate the probability of the offspring's genotypes and phenotypes.

Offspring Possibilities

1. Healthy Children: The daughter is unaffected, so she has two normal alleles. The probability of having a healthy child is 100% for the daughter. 2. Children with Both Conditions: The son has polydactyly, indicating he inherited at least one dominant allele for polydactyly. Since the father is albino, the son must have inherited the recessive allele for albinism from him. The probability of having a child with both conditions is 0% for the son.

Conclusion

In this family, the probability of having healthy children is 100%, and the probability of having children affected by both conditions is 0%.

I hope this helps! If you have any further questions, feel free to ask.