Alix accepted a proposal from Tsar Nikolas II of Russia. Looking at the Russian royalty, there are a number of unknown issues. Both Alix and Nikolas II, along with all five of their children, were assassinated during the Russian Revolution. It is known that their only son, Alexis, was a sufferer of hemophilia (therefore Alix must have been a carrier). None of their daughters expressed the disease, but they were too young to have had children, so we do not know if they were carriers. Knowing what you do about genotypes and inheritance, what is the probability any of their daughters would have been a carrier for hemophilia?