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.
To do so, just follow these steps. 1  Open up the Messages app from the home screen. 2  Tap on the New Message icon in the upper-right corner or select an existing conversation from the list. 3  You should see a small microphone icon to the right of the text box.