Question

У человека ген гемофилии наследуется как рецессивный и сцепленный с полом. Девушка, отец который страдал гемофилией, выходит замуж за здорового по этому признаку мужчину. Каких детей можно ожидать от этого брака?

Answer 1

Гемофилия - Ха
Нет гемофилии - ХА

P: X^AX^a   x   X^AY
G: (X^A) (X^a)  (X^A) (Y)
 F: X^AX^A(здоровый), X^AY(здоровый), X^AX^a(здоров), X^aY(болен) 

Answer 2

Understanding the Inheritance of Hemophilia

Hemophilia is a genetic disorder that affects the blood's ability to clot. It is inherited as a recessive and sex-linked trait. Let's explore the potential outcomes of a marriage between a woman whose father had hemophilia and a healthy man with no history of hemophilia.

Inheritance of Hemophilia: Hemophilia is a recessive and sex-linked disorder, meaning the gene responsible for hemophilia is located on the X chromosome. Since males have only one X chromosome, they are more likely to express X-linked recessive disorders.

Marriage Scenario: In this case, the woman's father had hemophilia, so she would be a carrier of the hemophilia gene. She marries a healthy man with no history of hemophilia.

Potential Offspring: 1. Sons: - All sons will inherit the Y chromosome from their father and the X chromosome from their mother. - Since the mother is a carrier, there is a 50% chance that each son will inherit the X chromosome carrying the hemophilia gene and therefore have hemophilia. - The sons will not inherit the Y chromosome carrying the hemophilia gene, as the Y chromosome does not carry the gene for hemophilia.

2. Daughters: - All daughters will inherit the X chromosome from their father and the X chromosome from their mother. - Daughters have a 50% chance of inheriting the X chromosome carrying the hemophilia gene from their mother, making them carriers like their mother.

Conclusion: The potential children from this marriage could include sons with hemophilia and daughters who are carriers of the hemophilia gene.