So, when excess pressure is placed on a nerve for a few seconds to several minutes, the nerve loses its ability to conduct its electrical signals. This initially manifests as decreased sensation in the form of a pins and needles, tingling, itching, and/or painful sensation.
Report Abuse. During interphase, the cell is essentially preparing for mitosis. Thus, the nuclear membrane is still intact. The cell is merely replicating its DNA and chromosomes. During mitosis itself, however, the nuclear membrane breaks down so the chromosomes become visible under a microscope.
What phase of mitosis do chromosomes become visible? It's generally agreed upon that chromosomes become visible during prophase of the cell cycle. Some scientists will say prometaphase (sort of a bridge between prophase and meta â¦ phase). Mitosis would occur after telophase of the cell cycle (Prophase, Metephase, Anaohase, Telophase).