OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Organelle used to separate chromosomes as a cell divides
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centrioles
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ribosome
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lysosome
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nucleus
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Explanation:
Detailed explanation-1: -The centrosome is the sole organelle that aids in cell division in both plant and other cells as well as animal cells.
Detailed explanation-2: -At the G2-M phase transition the two centrosomes, each containing a parent and a daughter centriole, separate and instruct the formation of the two spindle poles. At anaphase, the microtubule spindle divides the centrosomes such that each incipient daughter cell will inherit one copy.
Detailed explanation-3: -In late mitosis/G1, the two centrioles separate from each other. This process is called ‘centriole disengagement’ (depicted in the enlargement at the right) and is regulated by the protease separase.
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