Biology
- The Cell Cycle
What are all of the stages to the Cell Cycle? The Cell Cycle starts with its first stage called Interphase. The cell will be in this stage the longest amount of time out of all of the stages of the cycle. During the first part of Interphase is called...
- # 30 Mitosis
Mitosis is a nuclear division giving rise to genetically identical cells in which the chromosome number is maintained by the exact duplication of chromosome. Significance of mitosis production of geneticlly identical cells: It keeps the chromosome...
- # 28.1 The Mitotic Cell Cycle - Syllabus 2015
? Replication and division of nuclei and cells ? Understanding of chromosome behaviour in mitosis Learning Outcomes Candidates should be able to: (a) explain the importance of mitosis in the production of genetically identical cells, growth, repair...
- Anaphase
Term: anaphase Literally meaning: ?toward appearance?Origin: Anc Greek???-/ana-(=prefix denoting up to, toward, against) >???/ana(=up, on, upon before, first)?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show,...
- Telophase
Term: telophase Literally meaning: ?last appearance?Origin: Anc Greek?????/telos(=last, end)?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show, manifest, aver)Coined/HistoryEduard Strasburger (1844- 1912) In 1884...
Biology
mitosis
Term: mitosis
 |
| Walter Fleming (1843-1905) |
Origin: Anc Greek ?????/?????(=warp thread) + - -????/osis(=process) because chromatin of the cell nucleus appears as long threads in the first stages.
Coined : by German anatomist and founder of cytogenetics Walter Fleming (1843-1905) who noted that there were a number of stages of mitosis. Dividing cells had been observed almost forty years earlier by Carl Nageli, but he misinterpreted evidence of mitosis as something abnormal in the dead cells he?d observed. Flemming observed cell division in salamander embryos, where cells divide at fixed intervals. He developed a way to stain with aniline chromosomes to observe them clearly.
The results of Flemming's research on the stages of mitosis were published in a book entitled, "Cell Substance, Nucleus and Cell Division" in 1882. Based on his research, Flemming concluded that each cell's nuclei comes from another cell nucleus.
Definition:
The entire process of cell division including division of the nucleus and the cytoplasm resulting in generally two identical cells, each containing the same number of chromnosomes as that of the original cell. Mitosis typically consists of prophase, metaphase, anaphase, and telophase.
- The Cell Cycle
What are all of the stages to the Cell Cycle? The Cell Cycle starts with its first stage called Interphase. The cell will be in this stage the longest amount of time out of all of the stages of the cycle. During the first part of Interphase is called...
- # 30 Mitosis
Mitosis is a nuclear division giving rise to genetically identical cells in which the chromosome number is maintained by the exact duplication of chromosome. Significance of mitosis production of geneticlly identical cells: It keeps the chromosome...
- # 28.1 The Mitotic Cell Cycle - Syllabus 2015
? Replication and division of nuclei and cells ? Understanding of chromosome behaviour in mitosis Learning Outcomes Candidates should be able to: (a) explain the importance of mitosis in the production of genetically identical cells, growth, repair...
- Anaphase
Term: anaphase Literally meaning: ?toward appearance?Origin: Anc Greek???-/ana-(=prefix denoting up to, toward, against) >???/ana(=up, on, upon before, first)?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show,...
- Telophase
Term: telophase Literally meaning: ?last appearance?Origin: Anc Greek?????/telos(=last, end)?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show, manifest, aver)Coined/HistoryEduard Strasburger (1844- 1912) In 1884...