Please ans all the questions according to the pedigree chart
Solution:
1) The question mentions that the given pedigree depicts the inheritance of colourblindness. Colourblindness is a recessive disorder, also from the pedigree, one can infer the skipping of generations. When generations are skipped by a disease, it follows a recessive pattern of inheritance.
2) Colourblindness is an X-linked recessive disorder. Hence, it is a sex-linked genetic disorder.
3) In generation-I, father is wild type, as males cannot be carriers of an X-linked recessive disorder. So the genotype of Father is XY. In generation-I, mother will be the carrier (heterozygous) of colourblindness because in generation-II, their son is affected by the disease. So mother's genotype will be XcX.
1) The question mentions that the given pedigree depicts the inheritance of colourblindness. Colourblindness is a recessive disorder, also from the pedigree, one can infer the skipping of generations. When generations are skipped by a disease, it follows a recessive pattern of inheritance.
2) Colourblindness is an X-linked recessive disorder. Hence, it is a sex-linked genetic disorder.
3) In generation-I, father is wild type, as males cannot be carriers of an X-linked recessive disorder. So the genotype of Father is XY. In generation-I, mother will be the carrier (heterozygous) of colourblindness because in generation-II, their son is affected by the disease. So mother's genotype will be XcX.