CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Interphase
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G1
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Synthesis
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G2
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Detailed explanation-1: -Interphase (G₂): In this substage, the cell prepares for nuclear division and a protein that makes microtubles for cell division is synthesized. Prophase: The longest stage of mitosis. In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell.
Detailed explanation-2: -The data presented so far are consistent with the hypothesis that, in G2 phase, cyclin synthesis triggers mitotic entry: cycloheximide blocks mitotic entry, and the effects of MK-1775 and PD0166285 suggest that some pro-mitotic activity, possibly cyclin, gradually accumulates throughout G2 phase.
Detailed explanation-3: -G2 is the shortest phase of interphase. It is when organelles and proteins necessary for cell division are produced. The cell requires a bunch of proteins and other stuff to separate the chromosomes and divide the cell in half. All of these materials are produced during G2.
Detailed explanation-4: -The Apparent Requirement for Protein Synthesis during G2 Phase Is due to Checkpoint Activation. Cell Rep. 2020 Jul 14; 32(2):107901.