Prophase-l is divided into five phases based on
(A) time duration
(B) crossing over patterns
(C) chromosome behavior
(D) None of these
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Changes in microtube length provide the mechanism for chromosome movement. More specifically in the first part of anaphase-sometimes called anaphase A-the kinetochore microtubules shorten and draw the chromosomes toward the spindle poles.
So, the correct option is 'Chromosomal movement'.
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