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Grade: 12th pass
        initiation of assembly of mitotic spindle ,the microtubules help in this  process ..there is 2nd pt. of prophase in ncert like this what does it mean? is it mean that microtubules help or assemble .?
one year ago

Answers : (1)

Arun
23374 Points
							

Mitotic spindles are micro-tubule based structures that play a role in separating the chromosomes of sister chromatids. Prior to cell division, centrosome replicates to form spindle that helps move the chromosomes of the sister chromatids to two opposite poles of the cell.

Before the initiation of cell division, there has to be initiation and assembly of spindle, microtubules, the proteinaceous components i.e. Katanin, Kinesin, Dynein, all of which help to organize the spindle by forming kinetochore microtubules and polar microtubules for the attachment of chromosomes along the equatorial plane of the cell.

one year ago
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