Elizabeth Taylor had a very rare sort of mutation that didn't distort her natural beauty, but, some say, even facilitated it. She had an extra set of lashes. While the cause of the extra lashes is indeed a mutation - a result of an abnormal development of the FOXC2 gene - the effect of the luxurious lashes, also known as an 'accessory row', was entirely captivating, framing Taylor's deep violet eyes, and only adding to what admirers called her 'incandescent' beauty.