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.
First, during the S phase of interphase, the genetic material of a cell is duplicated. A human has 46 chromosomes (a set of 23 you inherit from your mother, and a set of 23 from your father).