Mitosis And Meiosis

Study Guide: Mitosis and Meiosis prepargond by Kathleen Bartholomew Mitosis is the touch on of dividing the replicated chromosomes of a single cell into deuce identical little girl cells. It is a procedure of cell division and happens during division of bodily cells. Mitosis is a form of asexual reproduction. It begins with a diploid cell, and ends with cardinal diploid daughter cells. The number of chromosomes does not change in mitosis. previous to the beginning of mitosis, the DNA of the cell is replicated in S variant of interphase. In G2 of interphase, the DNA of the cell begins condensing (becoming tightly packaged), in order to be ready for mitosis. However, the chromosomes cannot yet be date stampn in G2. Remember: *DNA must be fully condensed in order to divide.* M Phase is make up of mitosis and cytokinesis. The mitosis part has five phases: 1) prophase 2) prometaphase 3) metaphase 4) anaphase 5) telophase Following telophase is cytokinesis: division of the cytoplasm, organelles and macromolecules. Prophase -DNA is totally condensed. We can see itthis means there argon condensin proteins. - thermonuclear gasbag is still surrender ** Look closely at the picture. The nuclear envelope ordain help you identify this stage. -mitotic mandrel forms Prometaphase -nuclear envelope breaks apart.

You will not see it in this phase. The nuclear envelope is not done for(p) but is re-used in telophase. -the breakdown of the nuclear envelope allows the microtubules from the mitotic spindle to access the chromosomes. -microtubules attach to kinetochore proteins. Kinetoch ores are the protein area of the kinetochore! on each sister chromatid. The kinetochore is the area where both(prenominal) the sister chromatids contact one another. There are two kinetochores for each chromosome. -the cell has a circular plaster cast Metaphase -mitotic spindle has locomote chromosomes to the plaza of the cell -**chromosomes are line up at the metaphase shell (an imaginary line at the middle of the cell)** -all the microtubules...If you want to enamour a full essay, order it on our website: OrderCustomPaper.com

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