The Gap 1, DNA Synthesis, and Gap 2 phases of the cell cycle are collectively called: 21:41 Biology Chapter 6 The Gap 1, DNA Synthesis, and Gap 2 phases of the cell cycle are collectively called: a) mitosis. b) cytokinesis. c) M phase. d) interphase. e) prophase. Answer: d) interphase. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+