Preparation for genome are made in which phase

Most of the time, cells are in interphase, where growth occurs and cellular components are made. DNA is manufactured during S phase. To prepare the cell for Sphase (DNA synthesis), G1 phase occurs (the preparation of DNA synthesis machinery, production of histones).

a physical change is being made.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs