If the DNA content of a diploid cell in the G1 phase of the cell cycle is X, the DNA content of the same cell at metaphase will be the same.
A cell in the G1 phase has 2N (N is the number of chromosomes), commonly known as diploid DNA, whereas a cell in the G2 phase has 4N (the number of chromosomes) (tetraploid).
The G1 phase of the cell cycle is characterized by metabolic activity, the synthesis of cellular components, and general cell expansion. The S phase occurs after the G1 phase.
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