Cell Study, Overhead-Transparencies

Overhead-Transparency-Atlas: Cell division, development - W13104

22 overhead transparencies, size 22 x 28cm, with over 90 pictures and part pictures of multicolored photomicrographs and schematic illustrations of all stages. The high quality transparencies and the pictured explanatory text are categorized by subject and are delivered as complete atlases in strong plastic files with ring-mechanism. The complicated procedures of cell division can be seen with classical examples of known animals and plants. The normal cell division (mitosis) in chronological order, early prophase, late prophase, early metaphase, metaphase, early anaphase, late anaphase, early telophase, late telophase, complete separation are demonstrated with the following examples: typical cell division in the root tip of the hyacinth, development of the microspore mother cells of lilium (Anthers), development of the megaspore mother cells of lilium (embryosac), maturation and cleavage of ascaris megalocephala bivalens.

Embryo development, 12-part - T12009

With the common frog as an example (Rana temporaria) the different stages of the embryo development are shown 30 times magnified.

Meiosis, 10 models - W19203

With 10 models the stages of meiosis are explained. Supplied with teacher's aid in English.

Mitosis, 8 models - W19202

This set explains the stages of mitosis with 8 enlarged models. Supplied with teacher's aid in English.

Overhead-Transparency-Atlas: Cytology and molecular genetics - W13103

42 overhead transparencies, size 22 x 28cm, with over 108 pictures, mainly consisting of several part pictures. The high quality transparencies and the pictured explanatory texts are categorized by subject and are delivered as complete atlases in strong plastic files with ring-mechanism. The following subjects are covered in details: Cell nucleus and chromosomes, genes, molecules, DNA as a Carrier of Hereditary Information, structure of DNA, replication of DNA, RNA, genetical code and mutation, synthesis, structure and function of proteins.

Cell structure models - W19201

The enlarged models of an animal cell and a plant cell enable visual teaching about structures and differences of animal and plant cells. The parts of the cells are named in a key card, the illustrations that are also delivered without explanations can be used for testing purposes. Furthermore, the set contains 12 electromicroscopic illustrations of different cell structures. Supplied with teacher's aid in English.