Final answer:
The G1 phase, also known as the first growth or gap phase, is the period between the end of cell division and the onset of DNA synthesis. This phase is part of the cell cycle's interphase, which also includes the S phase (DNA synthesis) and the G2 phase (preparation for mitosis). Cells not proceeding to division may enter the G0 phase.
Step-by-step explanation:
The period in the cell cycle between the end of cell division and the beginning of DNA synthesis is called the G1 phase. The G1 phase (gap 1 phase) is the first growth phase in the cell cycle and is a time when the cell grows and carries out all normal metabolic functions and processes. It is followed by the S phase (synthesis phase), during which a cell replicates its DNA.
After the S phase, the cell enters another growth phase known as the G2 phase, where the cell continues to grow and prepares for mitosis. If a cell is not dividing, it may enter a resting phase called G0 phase. The interphase of the cell cycle includes the G1, S, and G2 phases and is the period leading up to mitosis.
The period in the cell cycle between the end of cell division and the beginning of DNA synthesis is called the G1 phase. This phase is part of the interphase, which is the period of the cell cycle leading up to mitosis and includes G1, S, and G2 phases. During the G1 phase, the cell grows and carries out normal metabolic functions, while in the S phase, DNA replication occurs.