G1 phase is first growth or gap phase S phase is DNA synthesis phase G2 phase is second growth or gap phase MITOTIC CELL DIVISION It normally occurs in Haploid cells Diploid cells Polyploid ID: 930685
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Slide1
CELL CYCLE
M phase is mitotic or meiotic phaseG1 phase is first growth or gap phaseS phase is DNA synthesis phaseG2 phase is second growth or gap phase
Slide2MITOTIC CELL DIVISIONIt normally occurs
in:Haploid cellsDiploid cellsPolyploid cellsVegetative cellsReproductive cells
Slide3INTERPHASE
Centrosome is divided into two daughter centrosomesNuclear membrane is completeNucleolus is largeChromatin fibres are in the form of chromatin network
Slide4INTERPHASE
G₀ PHASENormal functioning of cellPreparation for G1 phaseG1 PHASELongest phase of interphaseRNA synthesisProtein synthesisIncrease in amount of cytoplasm
Slide5INTERPHASE
S PHASEShortest phase of interphaseRNA synthesisProtein synthesisDNA Replication or chromosome duplication
Slide6INTERPHASE
G2 PHASELonger phase of interphaseRNA synthesisProtein synthesisIncrease in amount of cytoplasmProteins synthesized are to be used during M phaseDNA is completely replicated1. Chromatid2. Kinetochore3. p arm4. q arm
Slide7PROPHASE
1. Centrosome is divided into two daughter centrosome2. Nuclear membrane is broken downNucleolus becomes smallerChromatin fibres are condensed into chromonemataEach chromonema consists of two chromatids
Slide8METAPHASE
Centrosomes are at opposite polesNuclear membrane is absentNucleolus is absentChromonemata are condensed into chromosomesChromosomes are arranged at the equatorThe centromere are at the poles and arms of chromatids are projected toward the poles
Slide9ANAPHASE
Centrosomes are at opposite polesNuclear membrane is absentNucleolus is absentChromatids are separated and are called daughter chromosomesOne set of daughter chromosomes moves towards one pole and the other set towards opposite pole
Slide10TELOPHASE
Nuclear membrane reappearsNucleolus reappearsChromosomes are decondensedConstriction between two nuclei appears
Slide11CYTOKINESIS
Nucleus is formedNucleolus becomes prominentChromosomes are de-condensed to chromatin fibresTwo daughter cells are formed
Slide12