A normal couple has their first child, who is haemophilic. Work out a cross to show how it is possible. State the possibility of the normal and the haemophilic children, along with their sexes, that can be born to them.

A color-blind child is born to a normal couple. Work out a cross to show how it is possible. Mention the sex of this child.

A color-blind child is born to a normal couple. Work out a cross to show how it is possible. Mention the sex of this child.

(a) A couple with blood groups 'A' and 'B' respectively have a child with blood group 'O'. Wrok out a cross to show how it is possible and the probable blood groups that can be expected in their other off-springs. (b) Explain the genetic basis of blood groups in human population.

A woman has haemophilic brother and normal parents. She wants to marry a man who has no history of haemophila in his family. What is the possibility of her children having this disease

First child of a normal couple is suffering from sickle cell anaemia. The possibility of a second child having the disorder is

A non-haemophilic couple was informed by their doctor that there is possibility of a haemophilic child be born to them. Explain the basis on which the doctor conveyed this information. Give the genotypes and the phenotypes of all the possible children who could be born to them.

A non-haemophilic couple was informed by their doctor that there is possibility oh haemophilic child be born to them. Explain the basis on which the doctor conveyed this information. Give the genotype.

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.

First child of a normal pigmented couple is albino. The possibility of a second child being an albino is

A non-haemophilic couple was infomed by their doctor that there is possibility of a haemophilic child being born to them .Draw a checker board and find out the percentage of possibility of such a child among the progeny.