The Ascaris megalocephala Embryology

10 Microscope Slides. With depictured accompanying brochure 1(d). Cell division in l.s. of Allium root tips, showing all mitotic stages 2(e). Ascaris, primary germ cells in the growing zone of oviduct 3(f). Ascaris, entrance of sperm in the oocytes 4(f). Ascaris, first and second maturation divisions in oocytes I, 5(f). Ascaris, dito. in oocytes II 6(f). Ascaris, mature oocytes with male and female pronuclei 7(f). Ascaris, early cleavage stages 8(f). Ascaris, later cleavage stages 9(d). Ascaris, adult female, t.s. in region of gonads 10(d). Ascaris, adult male roundworm, t.s. in region of gonads.