https://padlet.com/ribboncw2/ujcht5qndijb en-us 2015-11-01 23:47:53 UTC 2016-04-04 13:06:25 UTC hello@padlet.com ribboncw2 https://padlet.com/ribboncw2/ujcht5qndijb/wish/103872618 Ashley and Clara]]> 2016-04-04 12:22:10 UTC https://padlet.com/ribboncw2/ujcht5qndijb/wish/103872618 tlagellatly266 https://padlet.com/ribboncw2/ujcht5qndijb/wish/103878809 In 1882, Walther Flemming published a detailed description of what happens during the process of mitosis.  This discovery cemented the previous idea stated by Rudolf Virchow that "all cells arise from other cells".  
Before Flemming's discovery, other scientists like Herr Carl Nägeli in 1844 witnessed cell division but were not sure if the process that saw in the dead, stained cells in the laboratory actually happened in living cells.  They also thought that chromosomes might not be part of the cell at all, but were possibly contaminants or a staining imperfection.  
Flemming studied the cells in  developing salamander embryos, and he could clearly see that chromosomes were a part of the cell.  He monitored the cells as they divided and figured out the mitotic process.  His terms, like Interphase, Prophase, etc. are still used by scientists today.  A few things that have been changed or discovered since Flemming's original discovery are that his "chromatin threads" are now referred to as chromosomes, and it has since been discovered that chromosomes are attached at their centromere.  ]]> 2016-04-04 12:49:48 UTC https://padlet.com/ribboncw2/ujcht5qndijb/wish/103878809 claradayspringjarvis https://padlet.com/ribboncw2/ujcht5qndijb/wish/103879571 Walter Flemming was born in Sachsenberg, Mecklenburg, Germany in 1843. 
He trained in medicine at the University of Rostock, and following this he served as a military physician during the Franco-Prussian war. 
From 1873 to 1876, he taught at the University of Prague, and in 1876 he accepted the position of professor of anatomy at the University of Kiel. He remained working there until his death in 1905. His discovery concerning mitosis and chromosomes is considered one of the ten most important scientific discoveries in cell biology, and his name is honoured by a medal awarded by the German Society for cell biology. After using dyes to observe the cell division of salamander embryos in 1879, he wrote a book concerning his discovery entitled "Cell-substance, Nucleus, and Cell-Division" in 1882. ]]> 2016-04-04 12:52:27 UTC https://padlet.com/ribboncw2/ujcht5qndijb/wish/103879571