Complex sentence: Histocompatibility testing has evolved greatly with the technological advances in DNA based molecular typing and solid phase immunoassays, which enable detection of very small amounts of HLA specific antibodies within an individual.
Split into simpler sentences: Histocompatibility testing has evolved greatly with the technological advances in DNA based molecular typing and solid phase immunoassays. With this technology is possible to detect very small amounts of HLA specific antibodies within an individual.