<prompt> Which of the following is not associated with Downs syndrome?Trisomy 2lMosaic 21Translocation 14;21q10;q10,21Deletion of 2l  <response>: TRISOMY 21: DOWN SYNDROME Incidence: 1 in 700 bihs Karyotypes: Trisomy 21 type: 47,XX, 21 Translocation type: 46,XX,der14;21q10;q10,21 Mosaic type: 46,XX47,XX, 21 Robbins Basic Pathology, 9 th edition. page : 238.. 