AP BIOLOGY

Detailed explanation-1: -In eukaryotic cells, the cell cycle is divided into two major phases: interphase and mitosis (or the mitotic (M) phase ). Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis.

Detailed explanation-2: -The G1 phase is the longest in the cell cycle. It’s the beginning of the interphase. The cell prepares for division during the G1 phase. During the G1 phase, cells are extremely metabolically active.

Detailed explanation-3: -During interphase, the chromosomes are decondensed and distributed throughout the nucleus, so the nucleus appears morphologically uniform. At the molecular level, however, interphase is the time during which both cell growth and DNA replication occur in an orderly manner in preparation for cell division.

Detailed explanation-4: -The interphase is the longest phase of the cell cycle because it is the stage during which all the preparation for cell division takes place.

Detailed explanation-5: -Thus, the interphase is the longest phase of the cell cycle.