By Professor Dr. Hans Georg Schwarzacher (auth.)
The growth in Micromorphology and Biochemistry of the final many years has ended in a slightly a long way attaining figuring out of the functionality of the genes. a lot can be recognized approximately their morphological association in the phone, quite their reduplication and segregation in reference to the method of mobile department. The in depth gentle microscopic experiences of the sooner cytological period on phone department and chromosomes, which laid the foundation for this realizing are very comprehensively coated through WASSERMANN (1929) in his masterly contribution "Wachstum und Vermehrung der lebendigen Masse" during this instruction manual. There exist additionally many more moderen stories on chromosomes and on cytogene tics (e. g. SWANSON, 1960; MAZIA, 1961; TURPIN and LEJEUNE, 1965; WmTEHousE, 1969; HAMERTON, 1971; FORD, 1973). even though, even supposing a few of them disguise the more moderen findings in guy, they've got both needed to depend on extra favorable species for specified easy details or dealt with cytogenetic difficulties from a simpler and medical viewpoint. considering the fact that additionally, the previous few years have introduced a flood of latest details on chromosomes because of new cytological strategies, a brand new evaluation on human chromosomes would appear justified in the body of this guide. This evaluation should be limited to human somatic chromosomes, i. e. it wi11leave out meiosis, and may supply details on different species provided that this turns out valuable for elevated clarity.