The standard eukaryotic cell cycle consists of four phases: G1, S, G2, and M phases. There are three phase transitions in a cell cycle: G1/S to initiate DNA synthesis, G2/M to enter mitosis, and ...

The cell's DNA is replicated in S phase and segregated in M phase (mitosis). In somatic cells, these phases are separated by gaps: G1 (unreplicated chromosomes) and G2 (replicated chromosomes).

Glioblastoma multiforme (GBM), commonly referred to as glioblastoma, is a malignant intracranial tumor derived from glial ...