AP BIOLOGY

Detailed explanation-1: -In the G2 phase, or second gap, the cell replenishes its energy stores and synthesizes the proteins necessary for chromosome manipulation. Some cell organelles are duplicated, and the cytoskeleton is dismantled to provide resources for the mitotic spindle.

Detailed explanation-2: -The organelles necessary for the cell division (in M phase) are also synthesized in the S phase. The microtubules that will be used to mobilize the chromosomes in M phase are assembled at G2.

Detailed explanation-3: -Protein Synthesis during G2 Phase Is Required for Normal Mitotic Progression. So far, we have shown that inhibition of either Wee1/Myt1 or p38 can overcome a cycloheximide-induced arrest and allow G2 phase cells to progress into mitosis in the absence of protein synthesis.

Detailed explanation-4: -During the second gap phase, or G 2start subscript, 2, end subscript phase, the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis.

Detailed explanation-5: -During the cell cycle, RNA and protein synthesis takes place during the G1 and G2 phases. The cell cycle is an ordered set of events, culminating in cell growth and division into two daughter cells. Non-dividing cells are not considered to be going through the cell cycle. The stages of the cell cycle are: G1, S, G2, M.