AP BIOLOGY

Detailed explanation-1: -The first three phases of the cell cycle, G1, S, and G2 are collectively known as interphase. The following phase of the cell cycle, mitosis, is divided into the five distinct stages of prophase, prometaphase, metaphase, anaphase, and telophase.

Detailed explanation-2: -The cell cycle of a eukaryotic cell has three stages: interphase, mitosis, and cytokinesis.

Detailed explanation-3: -A nuclear division (mitosis) followed by a cell division (cytokinesis). The period between mitotic divisions-that is, G1, S and G2-is known as interphase.

Detailed explanation-4: -Interphase was formerly called the resting phase. However, interphase does not describe a cell that is merely resting; rather, the cell is living and preparing for later cell division, so the name was changed.

Detailed explanation-5: -The first stage of interphase is called the G1 phase (first gap) because, from a microscopic aspect, little change is visible. However, during the G1 stage, the cell is quite active at the biochemical level.