Question:
When does mitosis of a cell really end? Is it when the nuclear
membranes form around the nuclei or when the cell membrane forms around the
two new cells?
Replies:
It is an on-going cycle, so any beginnings and endings are
arbitrary. Generally, if you go from interphase to interphase, the formation
of the nuclear membrane in each of the daughter cells would conclude the
cycle. Chromatin needs to uncoil and key genes become active again via
transcription of mRNA.
NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.