TITLE:
A New Exposition on Cell Division
AUTHORS:
Ronald L. Huston
KEYWORDS:
Cell Division, Nucleus, Centrosome, Chromosome
JOURNAL NAME:
Advances in Bioscience and Biotechnology,
Vol.10 No.8,
August
16,
2019
ABSTRACT: This paper provides summary
description of the procedures by which human and animal cells (eucaryotic cells) divide into two identical
parts. The focus is on the nucleus, with particular attention given to the
centrosome and the chromosome. Within the centrosome is a pair of organelle known as centriole.
When the cell is about to divide, the centrioles duplicate themselves. At the
same time, the DNA
within the chromosome duplicates itself. The centriole pair, now two pairs,
then separate with one pair migrating about the nucleus to the
diametrically opposite side. The original and migrated centriole then emit long
strands known as microtubules across the nucleus. Similarly, the chromosome
emits long strands known as kinetochores. The microtubules and the kinetochores
are perpendicular to each other and they cover the nucleus with a checkered
appearance. The diametrically opposed centriole then forms centrosomes which
pull the nucleus apart. The two nuclear parts then separate with each part
taking with its half of the remainder of the cell (the cytoplasm) and thus two
virtually identical cells are attained. The significance of this paper is that it provides
the reader with a condensed summary of the life-dependent process known as cell
division.