Interphase: composed of G1, S, and G2 phase; occurs before mitosis
• G1: Cell metabolically active; duplicates organelles and cytosolic components; centrosome replication begins.
• S: DNA replication
• G2: Cell growth continues; enzymes and other proteins are synthesized; centrosome replication completed.
A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell in question is most likely in