1.细胞周期时相组成(标准) Interphase 从细飚形忘变化考虑 G1:S: Cell grows and DNA replication carries out normal and chromosome metabolism; duplication organelles duplicate G grows nd prepar for mitosis ynthesis G: Gap从细胞形态变化考虑 S： Synthesis G: Gap 1.细胞周期时相组成(标准)