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

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.

Why are colourblindness and thalassemia categorized as Mendelian disorders ? Write the symptoms of these disease seen in people suffering from them. ( b) About 8 % of human male population suffers from colorblindness whereas only about 0.4% of human female population suffers from this disease .Write an explanation to show how it is possible

(a) Sickle cell anaemia in humans is a result of point mutation. Explain. (b) Write the genotypes of both the parents who have produced a sickle cell anaemic offspring.

Write the symptoms of haemophilia and sickle-cell anaemia in humans. Explain how the Inheritance pattern of the two diseases differs from each other.

A cross between a normal couple resulted in a son who was haemophilic and a normal daughter. In course of time, when the daughter was married to a normal man, to their surprise, the grandson was also haemophilic. a) Represent this cross in the form of pedigree chart. Give the genotypes of the daughter and her husband. b) Write the conclusion you draw of the inheritance pattern of this 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.

If there is a history of haemophilia in the family, the chances of male members becoming haemophilic are more than that of the female. (a) Why is it so ? (b) Write the symptoms of the disease.