ppt of Cell Division

(this is the ppt of the lecture)
Cell Division
Cell division, or mitosis, is the division of somatic (body) cells and can be observed with the light microscope. During this process, the parent cell divides, and each of the daughter cells receives a chromosomal set identical to that of the parent cell. Essentially, a longitudinal duplication of the chromosomes takes place, and these chromosomes are distributed to the daughter cells. The period between mitoses is called interphase, during which the DNA is replicated and the nucleus appears as it is most commonly seen in histological preparations. The process of mitosis is subdivided into four phases
During interphase, Interesting things happen: Cell prepares to divide and Genetic material is doubled.
In prophase:
1- The nuclear envelope begins to disaggregate
2- The chromatin in the nucleus begins to condense and becomes visible by light microscopy as elongated, spindly chromosomes.
3- The nucleolus disappears.
Centrosomes begin migrating to opposite poles of the cell, and microtubule fibers extend from centrosome to centrosome and from centrosome to the kinetochore (a large protein complex serves as a site for attachment to microtubules) of the centromere of each chromosome to form the mitotic spindle.