use prophase in a sentence.
Prophase - The first stage of mitosis is known as prophase, where the nuclear chromatin starts to become organized and condenses into thick strands that eventually become chromosomes observable in the optical microscope (Figure 1 (b)).
Diagrams of late prophase chromosomes (1000-band stage) of human, chimpanzee, gorilla, and orangutan (left to right for each number).
This is before the nucleolus breaks up, which it does at a later stage in the first meiotic prophase.
A crossover at the meiotic prophase, as shown in Fig. 2, produces a dicentric chromosome that simulates two normal chromosomes attached together at the ends of their short arms, and a fragement chromosome with telomeres at both ends.
Its "epigenesis" is shown to be a literary example of the phases of cell division, with discussions of its prophase, metaphase, anaphase, and telophase.