<prompt> Karyotyping of the foetus may be done from all of the following except -LymphocyteMonocyteAmniocyteFibroblast  <response>: Although human chromosome may be visualized karyotyping in any growing tissue such as bone marrow, skin, fibroblast, amniotic fluid cells or chorionic villus; they are most conveniently studied in peripheral blood lymphocytes. 