PATHOLOGY MCQ
SKIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of these is a job of an internal regulator cyclin?
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Ensure that all chromosomes have lined up in the center of the cell before cell division
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Ensure that spindle fibers have attached to all centromeres before cell division
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Ensure that DNA has been replicated before cell division
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All of these
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Explanation:
Detailed explanation-1: -Cell cycle progression is regulated in part by the sequential activity of various cyclins. The cyclins are regulatory subunits that bind, activate and provide substrate specificity for their catalytic partner serine-threonine kinases, collectively called cyclin-dependent kinases (Cdks) (reviewed in refs. 8 and 9).
Detailed explanation-2: -In order to drive the cell cycle forward, a cyclin must activate or inactivate many target proteins inside of the cell. Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks).
There is 1 question to complete.