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A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is for
- a)All offsprings
- b)All daughters
- c)Some of their daughters
- d)Some of their sons
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
A heterozygous female, i.e., a carrier for haemophilia marries a norm...
Explanation:
Genetic Inheritance of Haemophilia:
- Haemophilia is a genetic disorder caused by a mutation in the gene responsible for producing clotting factors.
- It is an X-linked recessive disorder, which means the gene responsible is located on the X chromosome.
Genotype of Parents:
- The female is a carrier for haemophilia, which means she carries one normal allele (X^H) and one mutated allele (X^h) on her X chromosomes.
- The male is normal, with two normal alleles (X^H Y).
Genetic Possibilities in Offspring:
- When the carrier female and the normal male have offspring, the possible genotypes of the children are as follows:
- Sons: X^H Y (normal) or X^h Y (affected)
- Daughters: X^H X^H (normal), X^H X^h (carrier), X^h X^h (affected)
Chances of Diseased Offspring:
- Since the female is a carrier, there is a 50% chance that she will pass on the mutated allele to her sons.
- Therefore, some of their sons (50% chance) have the potential to be affected by haemophilia.
Conclusion:
- In this scenario, the chances of some of their sons being diseased with haemophilia are higher than all offspring or all daughters.
Genetic Inheritance of Haemophilia:
- Haemophilia is a genetic disorder caused by a mutation in the gene responsible for producing clotting factors.
- It is an X-linked recessive disorder, which means the gene responsible is located on the X chromosome.
Genotype of Parents:
- The female is a carrier for haemophilia, which means she carries one normal allele (X^H) and one mutated allele (X^h) on her X chromosomes.
- The male is normal, with two normal alleles (X^H Y).
Genetic Possibilities in Offspring:
- When the carrier female and the normal male have offspring, the possible genotypes of the children are as follows:
- Sons: X^H Y (normal) or X^h Y (affected)
- Daughters: X^H X^H (normal), X^H X^h (carrier), X^h X^h (affected)
Chances of Diseased Offspring:
- Since the female is a carrier, there is a 50% chance that she will pass on the mutated allele to her sons.
- Therefore, some of their sons (50% chance) have the potential to be affected by haemophilia.
Conclusion:
- In this scenario, the chances of some of their sons being diseased with haemophilia are higher than all offspring or all daughters.
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Community Answer
A heterozygous female, i.e., a carrier for haemophilia marries a norm...
1. Haemophilia is a sex-linked recessive disease
2. It can be transmitted from unaffected carrier female to some of the male progeny.
3. The possibility of a female becoming a haemophilic is extremely rare.
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A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer?
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A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer?.
A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A heterozygous female, i.e., a carrier for haemophilia marries a normal male. The chances in the progeny of being diseased is fora)All offspringsb)All daughtersc)Some of their daughtersd)Some of their sonsCorrect answer is option 'D'. Can you explain this answer?.
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