THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Repair enzyme
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Cyclin
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RNA Polymerase
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Metastasize
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Detailed explanation-1: -G2 phase, Gap 2 phase, or Growth 2 phase, is the third subphase of interphase in the cell cycle directly preceding mitosis. It follows the successful completion of S phase, during which the cell’s DNA is replicated.
Detailed explanation-2: -G2 checkpoint – DNA quality control After the second growth phase, the cell checks that the DNA was completely and correctly replicated during the S phase. If it passes it enters the M phase, and if it fails it tries to correct the errors. If the cell is unable to repair the DNA, it undergoes apoptosis.
Detailed explanation-3: -The G2 phase checkpoints monitor the integrity of DNA and the accuracy of DNA replication, and the M phase checkpoints ensure correct chromosomal segregation and alignment.
Detailed explanation-4: -At the G2 checkpoint, the cell checks for: DNA damage. DNA replication completeness.