G1 phase

Definition

The G1 phase is the first stage of interphase in the cell cycle, during which a cell grows in size and synthesizes mRNA and proteins as preparatory steps for subsequent DNA replication. It is crucial for cell health and proper division.

Related terms

Cell cycle: The series of phases that a cell goes through from one division to the next, including periods of growth, DNA replication, and division.

Interphase: The period in the cell cycle when the cell prepares for division by growing in size, duplicating its DNA, and checking for errors.

DNA replication: The process of making two identical copies of DNA from one original DNA molecule, which occurs during the S phase following G1 in the cell cycle