Biology
- Mitosis
Prophase Chromatin condenses to form chromosomes. Centrioles migrate to opposite poles of the cells (except in plant cells which do not have centrioles). Microtubules develop and form a star shaped structure known as an aster, and spindle fibres may develop....
- 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...
- Phase
Term: phaseLiterally meaning: ?stage?Origin: Anc Greek ?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show, manifest, aver)Coined/HistoryDefinition1. (biology) Phase is defined as the stage in a process eg of development...
- 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
prophase
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| Eduard Adolf Strasburger(1844-1912) |
Term: prophase
Literally meaning: ?before the appearance?
Origin: Anc Greek
???/pro(=prefix denoting before, first)
?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi=appear, show, manifest, aver)
Coined/History
In 1884 the famous German botanist, Eduard Strasburger (1844- 1912) coined the terms prophase, metaphase, and anaphase for the different stages of cell division. He used the term metaphase in order to define the stage of nulear division after the chromosomes have divided into chromatids although about 1905 he realized that the chromosomes are already double when nuclear division begins.
Definition
Prophase is the first stage of mitosis and meiosis (following interphase and preceding metaphase) of eucaryotic cells in which the chromatin condenses into chromosome in which the chromatin becomes visible and nuclear envelope starts to break down.
- Mitosis
Prophase Chromatin condenses to form chromosomes. Centrioles migrate to opposite poles of the cells (except in plant cells which do not have centrioles). Microtubules develop and form a star shaped structure known as an aster, and spindle fibres may develop....
- 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...
- Phase
Term: phaseLiterally meaning: ?stage?Origin: Anc Greek ?????/phasis(=stage) > ?????/phasko(=imperfect tense of verb ??????/phemi(=appear, show, manifest, aver)Coined/HistoryDefinition1. (biology) Phase is defined as the stage in a process eg of development...
- 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...