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A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)
(a) Haemophilic son and haemophilic daughter.
(b) Haemophilic son and carrier daughter.
(c) Normal daughter and normal son.
(d) Normal son and haemophilic daughter.
(b) Haemophilic son and carrier daughter.
(c) Normal daughter and normal son.
(d) Normal son and haemophilic daughter.
Choose the most appropriate answer from the options given below:
- a)(b) and (d) only
- b)(a) and (b) only
- c)(b) and (c) only
- d)(a) and (d) only
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A normal girl, whose mother is haemophilic marries a male with no ance...
Understanding Haemophilia Inheritance
Haemophilia is an X-linked recessive disorder, meaning that the gene responsible for haemophilia is located on the X chromosome. The inheritance pattern is crucial in predicting the phenotypes of offspring from a normal female carrier and a normal male.
Genotype of the Parents
- The mother is a carrier for haemophilia, so her genotype is XhX (where Xh represents the X chromosome with the haemophilia allele).
- The father is normal, so his genotype is XY.
Possible Offspring Genotypes
1. Male Offspring (XY)
- Inherit Y from father and either X from mother:
- XhY (haemophilic son)
- XY (normal son)
2. Female Offspring (XX)
- Inherit X from father and either X from mother:
- XhX (carrier daughter)
- XX (normal daughter)
Possible Phenotypes
Based on the combinations above, the possible phenotypes for the offspring are:
- Haemophilic Son: Inherits Xh from the mother.
- Carrier Daughter: Inherits Xh from the mother.
- Normal Son: Inherits X from the mother.
- Normal Daughter: Inherits X from the mother.
Evaluating the Options
- Option (a): Haemophilic son and haemophilic daughter - Not possible (only sons can be haemophilic, daughters can be carriers or normal).
- Option (b): Haemophilic son and carrier daughter - Possible.
- Option (c): Normal daughter and normal son - Possible.
- Option (d): Normal son and haemophilic daughter - Not possible.
Conclusion
The correct answer is option C (b) and (c) only, as these combinations accurately reflect the potential phenotypes of the offspring based on the inheritance of haemophilia.
Haemophilia is an X-linked recessive disorder, meaning that the gene responsible for haemophilia is located on the X chromosome. The inheritance pattern is crucial in predicting the phenotypes of offspring from a normal female carrier and a normal male.
Genotype of the Parents
- The mother is a carrier for haemophilia, so her genotype is XhX (where Xh represents the X chromosome with the haemophilia allele).
- The father is normal, so his genotype is XY.
Possible Offspring Genotypes
1. Male Offspring (XY)
- Inherit Y from father and either X from mother:
- XhY (haemophilic son)
- XY (normal son)
2. Female Offspring (XX)
- Inherit X from father and either X from mother:
- XhX (carrier daughter)
- XX (normal daughter)
Possible Phenotypes
Based on the combinations above, the possible phenotypes for the offspring are:
- Haemophilic Son: Inherits Xh from the mother.
- Carrier Daughter: Inherits Xh from the mother.
- Normal Son: Inherits X from the mother.
- Normal Daughter: Inherits X from the mother.
Evaluating the Options
- Option (a): Haemophilic son and haemophilic daughter - Not possible (only sons can be haemophilic, daughters can be carriers or normal).
- Option (b): Haemophilic son and carrier daughter - Possible.
- Option (c): Normal daughter and normal son - Possible.
- Option (d): Normal son and haemophilic daughter - Not possible.
Conclusion
The correct answer is option C (b) and (c) only, as these combinations accurately reflect the potential phenotypes of the offspring based on the inheritance of haemophilia.
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Community Answer
A normal girl, whose mother is haemophilic marries a male with no ance...
Hence (b) & (c) are correct which makes option (c) as correct option.
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A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer?.
A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offspring? (NEET 2022 Phase 2)(a) Haemophilic son and haemophilic daughter.(b) Haemophilic son and carrier daughter.(c) Normal daughter and normal son.(d) Normal son and haemophilic daughter.Choose the most appropriate answer from the options given below:a)(b) and (d) onlyb)(a) and (b) onlyc)(b) and (c) onlyd)(a) and (d) onlyCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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