When the gene is considered pleiotropic, this means that a single gene controls or influences multiple and possibly unrelated phenotypic traits. Phenotypic traits are characteristics of an organism that is can be easily observed. Such as size, color, shape and behavior.
The phases go prophase, metaphase, anaphase, and telophase starting with interphase. But the first stage would be Interphase.
A biologist .....they study living things only.