Fig. 1
From: Clinical and molecular cytogenetic findings and pregnancy outcomes of fetuses with isochromosome Y
Schematic diagram of suggested mechanisms of origin of abnormal chromosomes of fetuses. Note: (1) or (4): mos 45,X/46,X,idic(Y) (fetus 2, 3, 4, 6 in AF cells). (3): 46,X,i(Y)(p10) (fetus 8 in AF cells). (1+2) or (4+6): mos 45,X/47,X,idic(Y)×2/46,X,idic(Y) (fetus 6 in cultured CB lymphocytes). (8+5+7): mos 45,X/46,X,idic(Y)/46,X,del(Y)/46,XY (fetus 5 in AF cells). (8+5+6+7): mos 45,X/46,X,idic(Y)/46,X,del(Y)/46,XY/47,X,idic(Y)×2. (Fetus 5 in cultured CB lymphocytes). (5+8+9+10): mos 45,X/46,X,i(Y)(p10)/46,X,del(Y)(q11)/46,XY (fetus 9 in AF cells).