Dnatube Scientific Videos

21.2-adhesion_junctions
21.2-adhesion_junctions
Tags // 21.2-adhesion_junctions
Added: April 1, 2007, 12:40 pm
Runtime: 59.40 | Views: 4386 | Comments:0
   

Animal Cell Division
Animal cell division under DIC microscope. Here is some information about cell division: Cell division is the process by which a cell, called the parent cell, divides into two cells, called daughter cells. Cell division is usually a small segment of a larger cell cycle. In meiosis however, a cell is permanently transformed and cannot divide again. Cell division is the biological basis of life. For simple unicellular organisms such as the Amoeba, one cell division reproduces an entire organism. On a larger scale, cell division can create progeny from multicellular organisms, such as plants that grow from cuttings. Cell division also enables sexually reproducing organisms to develop from the one-celled zygote, which itself was produced by cell division from gametes. And after growth, cell division allows for continual renewal and repair of the organism. The primary concern of cell division is the maintenance of the original cell's genome. Before division can occur, the genomic information which is stored in chromosomes must be replicated, and the duplicated genome separated cleanly between cells. A great deal of cellular infrastructure is involved in keeping genomic information consistent between "generations".
Tags // 19.2-animal_cell_division
Added: March 30, 2007, 4:51 pm
Runtime: 57.50 | Views: 25220 | Comments:0