Thursday, January 30, 2014

In which phase of mitosis do chromosomes become visible?

Mitosis is the process of cell division, in which a parent cell divides to produce two daughter cells. It is a form of asexual reproduction. Mitosis is not a single-step process and actually consists of 5 different phases. These include, prophase, prometaphase, metaphase, anaphase and telophase. Interphase is not considered a part of mitosis process and during this phase, the cell prepares for division through mitosis. During the prophase, discrete chromosomes become visible due to the condensing of chromatins (long strands of DNA material bound with different proteins). These discrete chromosomes can be viewed very clearly by using a microscope. In the next step of mitosis, the prometaphase, the nuclear membrane dissolves and the microtubules attach themselves to the chromosomes for eventual separation.


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