CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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G1 phase, DNA replication
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G2 phase, preparation for mitosis
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S phase, cell division
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M phase, cell growth
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Detailed explanation-1: -Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase? mitosis and cytokinesis. Interphase consists of the G1, S, and G2 phases.
Detailed explanation-2: -G2 phase (Gap 2)-The Cell “double checks” the duplicated chromosomes for error, making any needed repair.
Detailed explanation-3: -Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles. In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents.
Detailed explanation-4: -The G2-phase checkpoint, also known as G2/M-phase checkpoint, has the function of preventing cells with damaged DNA, lasting from the G1 and S phases or generated in G2, from undergoing mitosis.
Detailed explanation-5: -Interphase is divided into G1, S, and G2 phases. It is during interphase that the cell grows by making proteins and cytoplasmic organelles. During S phase, the DNA is replicated, yielding sister chromatids. G2 involves the last bit of growth, and also, DNA proofreading and repair.