Sada 6 rôznych preparátov s popisom. Obsahuje tieto preparáty: 1. Bunkové delenie v špičke koreňa, cibuľa; 2. Bunkové delenie v kostnej dreni cicavcv; 3. Meióza a mitóza v semenníku salamandry; 4. Ľalia, peľové materské bunky, metafázy a anafázy; 5. Obrie chromozómy larvy pakomára, 6. Škrkavka - červ, embryológia. EN názvy: 1(d). Mitosis, l.s. from Allium root tips showing plant mitosis stained with iron-hematoxyline 2(f). Mitotic stages in sec. of red bone marrow 3(e). Meiotic and mitotic stages in sec. of Salamandra testis 4(f). Lilium, anther t.s., microspore mother cells showing telophase of first and prophase of second division 5(f). Giant chromosomes, smear from salivary gland of Chironomus 6(f). Ascaris megalocephala embryology. Sec. of uteri showing maturation stages.