He found that the number of sunspots rose and fell in a nearly regular cycle, lasting about 11 years. Interestingly, it soon turned out that big magnetic storms when the magnetic field was disturbed (typically by up to 1%) seemed to occur most frequently during the years with the most sunspots.
1 There are three stages of interphase: G1 (first gap), S (synthesis of new DNA), and G2 (second gap).  Cells spend most of their lives in interphase, specifically in the S phase where genetic material must be copied.
â¢ Carries out activities (taking in nutrients, cell respiration, protein synthesis) â¢ DNA replication (copying the chromatids) What are the three phases of interphase & what happens in each phase?