PATHOLOGY

Detailed explanation-1: -Interphase. G1, S and G2 phases are all cumulatively referred to as interphase involving the growth of a cell and the replication of its DNA. Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles.

Detailed explanation-2: -Phases-Interphase *Collectively, G1, S and G2 are called Interphase. A) First growth (G1) Phase-rapid growth, routine functions. Cells that do not divide remain here (muscle, nerve) B) Synthesis (S) Phase-DNA copied. At the end, chromosomes consisting of 2 chromatids attached at the centromere.

Detailed explanation-3: -Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.

Detailed explanation-4: -The G1, S, and G2 phases collectively make up the interphase. The DNA content of a cell in the G1 phase is 2N (N is the number of chromosomes), also known as diploid, whereas the DNA content of a cell in the G2 phase is 4N (tetraploid).