DVD: Meiosis - stages of maturity division, single license

DVD with approx. 20 min. playing time, teacher's booklet
Each species has its own typical number of chromosomes, which is passed on from generation to generation. But how is it that when a female egg and a male sperm cell fuse, there is no chromosome duplication?
The secret lies in meiosis, the cell division process for the formation of germ cells. The video explains meiosis in an easily understandable way as a fundamental process for all sexually reproducing organisms. The individual phases of meiosis are explained with the help of clear diagrams.