Complex sentence: Prophase (from the Greek πρό, "before" and φάσις, "stage"), is a stage of Mitosis this is when the chromatin condenses into two rod-shaped structures called chromosomes in which the chromatin becomes visible.
Split into simpler sentences: Prophase (from the Greek πρό, "before" and φάσις, "stage"), is a stage of Mitosis. This is when the chromatin condenses into two rod-shaped structures called chromosomes in which the chromatin becomes visible.