Bill Graham, the acid-tongued concert promoter who championed rock acts during San Francisco's psychedelic era and went on to play a leading role in pop music's emergence as a cultural force, died late Friday when a helicopter carrying him and two associates crashed into an electrical utility tower near Vallejo.
People born with diphallia rarely have two fully functioning penises, like DDD. Often times, the condition is accompanied by a plethora of other medical problems, along with a higher risk of spina bifida.
If both the eggs get fertilised by individual sperms carrying X - chromosomes then we have two baby girls. If both the eggs get fertilised by individual sperms carrying Y -chromosomes then we have two baby boys. In all the above cases the twins born are non - identical as there's two different eggs .