This is the pedigree of a family tracing the movements of the gene for haemophilia. Explain the pattern of inheritance of the disease in the family.

What is the pattern of inheritance in the above pedigree chart?

Genes for haemophilia disease is locted on :

If a boy's father has haemophilia and his mother has one gene for haemophilia, what is the chance that the boy will inherit the disease

Haemophilia is a sex linked recessive disorder of humans. The pedigree chart given below shows the inheritance of Haemophilia in one family. Study the pattern of inheritance and answer the questions given. (a) Give all the possible genotypes of the members 4, 5 and 6 in the pedigree chart. (b) A blood test shows that the individual 14 is a carrier of gaemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilic male ? Show with the help of Punnett square.

give an example of an ausomal reessive trait in humans Explain its pattern of inheritance with the help of a cross .

Why are thalassemia and hemophilia categorized as Mendelian disorders ? Write the symptoms of these diseases .Explain their pattern of inheritance in humans. ( b) Write the genotypes of the normal parents producing a heamophilic son.

Assertion: Mendelian disorders are transmitted to offspring on the same lines as in the principles of inheritance. Reason: The pattern of inheritance of Mendelian disorders cannot be traced in a family by the pedigree analysis.

This pedigree is of a rare trait, in which children have extra fingers and toes. Which one of the following patterns of inheritance is consistent with this pedigree

(a) Why is it that the father never passes on the gene for haemophilia to his sons? Explain. (b) State the functions of the following in a prokaryote : (i) tRNA, (ii) rRNA