A couple both carries of sickle cell anaemia planning to get married, wants to know the chances of having anaemic progeny

Both sickle cell anaemia and huntingtons chorea are

Both sickle cell anaemia and Huntington's chorea are

Both sickle cell anaemia and Huntington's cholera are

Both sickle-cell anaemia and Huntington's chorea are

Both sickle-cell anaemia and huntingon's chorea are

Given below is the pedigree of sickle cell anaemia, in a family In this the RBC both parents will be -

Given below is the pedigree of sickle cell anaemia, in a family In this the RBC both parents will be -

A man & women who both appear normal have a child together, who has sickle cell anaemia. The woman becomes pregnant again and is told that she is carrying fraternal (dizygotic) twins. What is the probability that both of the couple's twins will have Sickle Cell Anaemia :-

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