As explained in this eMedTV segment, a mutation in the F8 gene causes hemophilia A, while a mutation in the F9 gene is responsible for hemophilia B. This article covers these genes in more detail and discusses how hemophilia is inherited.
To forward a text message on an iPhone running the iOS 8 operating system, open the conversation thread, select an individual message and then use the Share feature to send the message to one or more of your contacts.
The code is available in a window that will appear on your iPad. Enter the code from the iPad into the authorization window on the iPhone. When the code is entered, this authorizes text messages to be forwarded to the iPad. You will now be able to send and receive SMS text messages on the iPad.