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If fine glass needles are used to manipulate a chromosome inside a living cell during early...

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Biology

If fine glass needles are used to manipulate a chromosome insidea living cell during early M phase, it is possible to trick thekinetochores on the two sister chromatids into attaching to thesame spindle pole. This arrangement is normally unstable, but theattachments can be stabilized if the needle is used to gently pullthe chromosomes so that the mictotubules attached to bothkinetochores (via the same spindle pole) are under tension. Whatdoes this suggest to you about the mechanism by which kinetochoresnormally become attached and stay atached to microtubules fromopposite spindle poles? Is this finding consistent with thepossibility that a kentochore is programmed to attach tomictotubules from a particular spindle pole? Explain youranswer.

Answer & Explanation Solved by verified expert
4.4 Ratings (751 Votes)
During the synthesis phase S phase in the cell cycle the centrosome starts to duplicate and as the mitotic phase begins both centrosomes separate to establish the mitotic spindleIn this way the spindle in a mitotic cell has two poles emanating microtubules Microtubules    See Answer
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