Hemophilia is an X-linked recessive disease. A hemophilic man marries a woman who is not a carrier of the disease. (a) Draw a Punnett square showing the genotypes of their children. (b) What are the chances that their daughters will be carriers of the disease? (c) What percentage of their children are likely to have the disease?
Hemophilia is an X-linked recessive disease. A hemophilic man marries a woman who is not a carrier of the disease.
(a) Draw a Punnett square showing the genotypes of their children.
(b) What are the chances that their daughters will be carriers of the disease?
(c) What percentage of their children are likely to have the disease?
Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden pea plants. Mendel presented his work in a paper entitled “Experiments in plant hybridization” at the meeting of the natural history society of Brunn. Mendel gave various postulates regarding the inheritance of characters and these postulates later became the law of Mendel. The three laws given by Mendel are the law of dominance, the law of segregation, and the law of independent assortment.
Human inheritance can be studied by pedigree analysis. Pedigree is a diagram like a family tree. There are 5 types of human inheritance- X-linked recessive, X-linked dominant, Y-linked, autosomal dominant, and autosomal recessive.
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