A model cell with damaged DNA was created to explain the importance of checkpoints in a cell cycle. The G2 checkpoint accidental
ly failed to work during experimentation. What do you think is the likely consequence of this failure? A.The cell divided and created two cells with repaired DNA.
B.The cell couldn’t divide, and cell division stopped.
C.The cell died before it could complete division.
D.The cell divided and created two nonidentical cells.
E.The cell continued to divide uncontrollably to create more damaged cells.
The correct answer is option E.The cell continued to divide uncontrollably to create more damaged cells.
The G 2 check point checks if the replicated genetic material in the DNA is error free or not. In case, there are errors present in the DNA of the cell, the G2 checkpoint doe not allow the cell to undergo mitosis until it is repaired. Hence, a damage to the G2 checkpoint would lead to the division of the cell with damaged DNA and the cell will continue to divide and produce more damaged cells.
B is correct. Production of PEP, glucose, and fructose 6-phosphate by gluconeogenesis-specific enzymes that bypass irreversible steps of glycolysis push the equilibrium of reversible enzymes that function both in glycolysis and gluconeogenesis in the direction of glucose production.
