D. Who is NOT eligible to volunteer for the study?Identical (monozygotic) twins are not eligible since it is already known that their DNA (genetic material) is the same. However, we know of other researchers studying identical twins; if such a family is interested in potentially participating in a twin study, we can provide researcher contact information. Individuals below the age of 18 are not eligible due to more uncertainty as to their actual sexual orientation as adults.
It would appear this study is ALL about subjective behavioral psychology and has NOTHING to do with objective physical science...
I would submit the fact they are EXCLUDING identical twins establishes this study is 100% a waste of time.
If identical twins with identical DNA exhibit different sexual behavior then the homosexual gene premise is gone.
IOW the sample has been rigged. (and a waste of tax dollars. Seriously who put in the funding bill for this monstrous fake?)