Victoria's youngest son, Leopold, was affected by the blood-clotting disease haemophilia B and two of her five daughters, Alice and Beatrice, were carriers. Royal haemophiliacs descended from Victoria included her great-grandsons, Tsarevich Alexei of Russia, Alfonso, Prince of Asturias, and Infante Gonzalo of Spain. The presence of the disease in Victoria's descendants, but not in her ancestors, led to modern speculation that her true father was not the Duke of Kent but a haemophiliac. There is no documentary evidence of a haemophiliac in connection with Victoria's mother, and as male carriers always suffer the disease, even if such a man had existed he would have been seriously ill. It is more likely that the mutation arose spontaneously because Victoria's father was over 50 at the time of her conception and haemophilia arises more frequently in the children of older fathers. Spontaneous mutations account for about a third of cases. COUNT 13
QSN1 What blood clotting disease did Victorias youngest son have? ANS1 haemophilia B QSN2 How many of Victorias daughters were carriers of the blood clotting disease that Leopold had? ANS2 two QSN3 It was believed that Victorias true father was a hemophiliac and not who? ANS3 the Duke of Kent QSN4 What is the sex of carriers that always suffer the blood clotting disease haemophi;ia B? ANS4 male QSN5 How old was Victorias father at the time of her conception? ANS5 over 50 QSN6 What disease did Victoria's youngest son have?  ANS6 the blood-clotting disease haemophilia B QSN7 Which two of Victoria's daughters also were carriers for the blood clotting disorder?  ANS7 Alice and Beatrice QSN8 Who was Queen Victoria's father rumored to be instead of the Duke of Kent? ANS8 a haemophiliac QSN9 What disease affected Leopold and was carried by two of Victoria's daughters? ANS9 haemophilia B QSN10 Which Royal haemophiliacs are said to have descended from Victoria? ANS10 Tsarevich Alexei of Russia, Alfonso, Prince of Asturias, and Infante Gonzalo of Spain QSN11 Which of Victoria's daughters were carriers of haemophilia? ANS11 Alice and Beatrice QSN12 What is a big factor on whether or not an offspring will spontaneously develop haemophilia? ANS12 older fathers QSN13 In how many births do spontaneous cases of haemophilia arise? ANS13 about a third of cases