A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia? •a) 0% •b) 25% •c) 50% •d) 75%
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia? •a) 0% •b) 25% •c) 50% •d) 75% The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works: • Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY). • Hemophilia is typically passed from carrier females (XHXh) to their sons. In this scenario: • The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself. • Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY). The likelihood of their male child inheriting hemophilia is as follows: • If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son. • If she passes on the Xh chromosome, their son will inherit hemophilia (XhY). • Therefore, the likelihood that their male child will inherit hemophilia is 50%. So, the correct answer is (c) 50%.
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia? •a) 0% •b) 25% •c) 50% •d) 75% The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works: • Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY). • Hemophilia is typically passed from carrier females (XHXh) to their sons. In this scenario: • The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself. • Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY). The likelihood of their male child inheriting hemophilia is as follows: • If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son. • If she passes on the Xh chromosome, their son will inherit hemophilia (XhY). • Therefore, the likelihood that their male child will inherit hemophilia is 50%. So, the correct answer is (c) 50%.
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia? •a) 0% •b) 25% •c) 50% •d) 75% The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works: • Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY). • Hemophilia is typically passed from carrier females (XHXh) to their sons. In this scenario: • The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself. • Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY). The likelihood of their male child inheriting hemophilia is as follows: • If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son. • If she passes on the Xh chromosome, their son will inherit hemophilia (XhY). • Therefore, the likelihood that their male child will inherit hemophilia is 50%. So, the correct answer is (c) 50%.
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Hemophilia Chang 25%
Q26 C
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia?
•a) 0%
•b) 25%
•c) 50%
•d) 75%
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia?
•a) 0%
•b) 25%
•c) 50%
•d) 75%
The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works:
• Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY).
• Hemophilia is typically passed from carrier females (XHXh) to their sons.
In this scenario:
• The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself.
• Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY).
The likelihood of their male child inheriting hemophilia is as follows:
• If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son.
• If she passes on the Xh chromosome, their son will inherit hemophilia (XhY).
• Therefore, the likelihood that their male child will inherit hemophilia is 50%.
So, the correct answer is (c) 50%.
25%
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia?
•a) 0%
•b) 25%
•c) 50%
•d) 75%
The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works:
• Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY).
• Hemophilia is typically passed from carrier females (XHXh) to their sons.
In this scenario:
• The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself.
• Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY).
The likelihood of their male child inheriting hemophilia is as follows:
• If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son.
• If she passes on the Xh chromosome, their son will inherit hemophilia (XhY).
• Therefore, the likelihood that their male child will inherit hemophilia is 50%.
So, the correct answer is (c) 50%.
A pregnant woman with a family history of hemophilia is concerned about the risk of passing on the condition to her child. Her partner has no family history of bleeding disorders. What is the likelihood that their male child will inherit hemophilia?
•a) 0%
•b) 25%
•c) 50%
•d) 75%
The likelihood that their male child will inherit hemophilia depends on the genetic inheritance pattern of hemophilia. Hemophilia is an X-linked recessive disorder, which means it is carried on the X chromosome. Here’s how it works:
• Females have two X chromosomes (XX), and males have one X and one Y chromosome (XY).
• Hemophilia is typically passed from carrier females (XHXh) to their sons.
In this scenario:
• The pregnant woman has a family history of hemophilia, so she may be a carrier (XHXh) or potentially affected (XhXh) herself.
• Her partner, with no family history of bleeding disorders, is presumed to have a normal X chromosome (XHY).
The likelihood of their male child inheriting hemophilia is as follows:
• If the pregnant woman is a carrier (XHXh), there is a 50% chance that she will pass on her Xh chromosome to her son.
• If she passes on the Xh chromosome, their son will inherit hemophilia (XhY).
• Therefore, the likelihood that their male child will inherit hemophilia is 50%.
So, the correct answer is (c) 50%.