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The question seems to lack information. Please divulge more details on it so that we can help you out. I have provided the general inheritance pattern of both hemophilia and color blindness.
Haemophilia is a sex-linked, recessive disorder. It is carried on X chromosomes, and like any other sex-linked disorder and follows crisscross inheritance, i.e., the trait is inherited from the homozygous mother to all the sons. Female offspring themselves remain unaffected but serve as a carrier of the disease. The pattern of inheritance can be explained with the help of the following cross:
Parent Phenotype Haemophilic mother Normal father
Parent Genotype XhXh XY
Gametes Xh Xh X Y
Progeny Genotype XhX XhY XhX XhY
Progeny Phenotype Carrier Female Haemophilic male Carrier female Haemophilic male
Colour blindness is X-linked recessive disorder because of which a person is not able to distinguish between some of the colours, which other people can recognise easily. In this disease, females become affected only when they carry a gene for colour blindness on both X chromosomes and become carrier when they contain affected gene on only one X chromosome. The male gets affected when it carry affected gene on its X chromosome. Hence, the genotype of affected female will be XC XC , carrier female will be XCX and affected male will be XC Y. This can be depicted by the following cross:
Parents XC XC X XCY
Gametes XC XC Y
Offsprings XCXC XCY
Affected female Affected male
child child
Hope this clears your doubt.
Regards.
The question seems to lack information. Please divulge more details on it so that we can help you out. I have provided the general inheritance pattern of both hemophilia and color blindness.
Haemophilia is a sex-linked, recessive disorder. It is carried on X chromosomes, and like any other sex-linked disorder and follows crisscross inheritance, i.e., the trait is inherited from the homozygous mother to all the sons. Female offspring themselves remain unaffected but serve as a carrier of the disease. The pattern of inheritance can be explained with the help of the following cross:
Parent Phenotype Haemophilic mother Normal father
Parent Genotype XhXh XY
Gametes Xh Xh X Y
Progeny Genotype XhX XhY XhX XhY
Progeny Phenotype Carrier Female Haemophilic male Carrier female Haemophilic male
Colour blindness is X-linked recessive disorder because of which a person is not able to distinguish between some of the colours, which other people can recognise easily. In this disease, females become affected only when they carry a gene for colour blindness on both X chromosomes and become carrier when they contain affected gene on only one X chromosome. The male gets affected when it carry affected gene on its X chromosome. Hence, the genotype of affected female will be XC XC , carrier female will be XCX and affected male will be XC Y. This can be depicted by the following cross:
Parents XC XC X XCY
Gametes XC XC Y
Offsprings XCXC XCY
Affected female Affected male
child child
Hope this clears your doubt.
Regards.