What will the study involve for the volunteers?
This study involves two main components. People in the study will provide a DNA sample (blood or saliva sample). This sample is used to extract DNA for the genetic part of the research study. We are not studying other aspects of the blood or saliva, such as a person’s HIV status. The brother volunteers will also complete questionnaires about their sexual interests and experiences, memories of their childhood and adult gender related behavior, demographic characteristics, health and medical history, and personal and family history. The gay brothers will also supply contact information about their other brothers and parents, if those family members have indicated their interest in potentially volunteering for the study. More information is available in the brochure available on-line. A full description of the volunteer’s activities in this study are contained in a document that will be given to them and discussed with them, if they have any questions, before they agree to participate. Th
