Download or read book The Chromosome Complement written by Bernard John and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence determines the specificity of proteins. And enzyme proteins are immediately responsible for the peripheral metabolism which enables the organism to impose its own kind of order on the raw materials it absorbs. The course of development is determined not only by the nature of the genetic material but by its over-all amount and the relative frequency of the different functional units. Differential rates of epigenetic activity matter also. In theory, therefore, differential development within or even between individuals could be determined by the differential replication of the various genetic elements or by their differential activity. And further variation could arise by the differential transmission of these elements between cells. Indeed it would appear that all these possibilities are exploited by living systems. If like is to beget like, however, any genetic change which occurs during development must be undone, or else germinal units preserved from change must be set aside. As far as is known, genetic changes, even those involving only quantity or relative amounts, are reversible to only a very limited extent so that a change once done cannot be undone. Consequently genetic changes during the development of presumptive germ-lines are either non existant or minor and confined to a small class of un aggregated deter minants.
Download or read book The Chromosome Complement By B John and K R Lewis written by Bernard John and published by . This book was released on 1968 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Complement and Its Relationship to Cold Resistance in the Higher Plants written by Wray Merrill Bowden and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparative Study of the Chromosome Complement in Ribes written by C. D. Darlington and published by . This book was released on 1929 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploring the Biological Contributions to Human Health written by Institute of Medicine and published by National Academies Press. This book was released on 2001-07-02 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: It's obvious why only men develop prostate cancer and why only women get ovarian cancer. But it is not obvious why women are more likely to recover language ability after a stroke than men or why women are more apt to develop autoimmune diseases such as lupus. Sex differences in health throughout the lifespan have been documented. Exploring the Biological Contributions to Human Health begins to snap the pieces of the puzzle into place so that this knowledge can be used to improve health for both sexes. From behavior and cognition to metabolism and response to chemicals and infectious organisms, this book explores the health impact of sex (being male or female, according to reproductive organs and chromosomes) and gender (one's sense of self as male or female in society). Exploring the Biological Contributions to Human Health discusses basic biochemical differences in the cells of males and females and health variability between the sexes from conception throughout life. The book identifies key research needs and opportunities and addresses barriers to research. Exploring the Biological Contributions to Human Health will be important to health policy makers, basic, applied, and clinical researchers, educators, providers, and journalists-while being very accessible to interested lay readers.
Download or read book Molecular Biology of the Cell written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Complement and Its Relationship to Cold Resistance in the Higher Plants written by and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Complement of Mormoniella Vitripennis Walker written by Stanley Lamar Hooks and published by . This book was released on 1962 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abnormalities of the Sex Chromosome Complement in Man written by Medical Research Council (Great Britain) and published by . This book was released on 1964 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Complement of Four Strains of D i g i t a l i s P u r p u e a L written by Jean Marie Cummings and published by . This book was released on 1943 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abnormalities of the Sex Chromosome Complement in Man written by William Michael Court Brown and published by . This book was released on 1964 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abnormalities of the Sex Chromosome Complement in Man written by Medical Research Council and published by . This book was released on 1964 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Atlas of Mammalian Chromosomes written by Tao C. Hsu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, because of advances in karyological techniques, we have witnessed a remarkable renewal of interest in studies of mammalian chromosomes. These techniques, generally involving the use of tissue culture, colchicine and hypotonic solution pretreatments, allow for a much clearer display of metaphase chromosomes of mammalian cells than the classic direct squash or tissue section methods. Consequently, what was known about the chromosome complement of most mammals must be revised. The most astonishing revision, of course, was that made by Tjio and Levan in 1956, who demonstrated that the diploid number of man is 46, not 48 as previously believed. Similar revisions will have to be made for many other mammalian species, either in number or in karyotype structure. Many animals are being examined cytologically for the first time. The findings are now extensive and scattered; they appear in numer ous periodicals and newsletters, or they are kept in cytologists' file drawers without being published. It is difficult to have access to perti nent data for comparison among related species or for evaluation of various karyological characteristics within a karyotype. Such evaluations can be done only when reasonably uniform material is collected and placed side by side for comparison, accompanied by relative references. We considered that probably an Atlas of Mammalian Chromosomes would fulfill such a need. Needless to say, it is impossible to present karyotypes of all mam malian species at one time.
Download or read book The Chromosome Complement of Cyphomandra Betacea written by Thomas Wallace Whitaker and published by . This book was released on 1933 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Complement of First cleavage Mouse Embryos After in Vitro Fertilization written by Josep Santaló i Pedro and published by . This book was released on 1986 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chromosome Disorders written by Gordon Howard Valentine and published by . This book was released on 1975 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protoplasmatologia written by L. V. Heilbrunn and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
