Most cells rely on structural tethers to position chromosomes in preparation for cell division. Not so oocytes. Instead, a powerful intracellular stream pushes chromosomes far-off the center in preparation for the highly ...
Cell & Microbiology
Aug 28, 2011
1
0
Many living creatures possess exceptional abilities that set them apart from other species. Cheetahs can run up to 60 miles per hour; ants can lift 100 times their body weight; flatworms can regrow amputated body parts. Scientists ...
Cell & Microbiology
Aug 11, 2016
1
679
(Phys.org)—For organisms to grow and develop, they must produce tissues with distinct functions, each one made up of similar cells. These different tissues are derived from stem cells. How stem cells divide to create new ...
Cell & Microbiology
Aug 31, 2012
0
0
Grasses have "respiratory pores" (called stomata) that open and close to regulate the uptake of carbon dioxide for photosynthesis on the one hand and water loss through transpiration on the other. Unlike many other plants, ...
Plants & Animals
Dec 23, 2022
0
3
Rice University scientists have found a way to engineer a new kind of cell differentiation in bacteria, inspired by a naturally occurring process in stem cells.
Cell & Microbiology
Aug 12, 2019
0
191
A novel protein, PUB4, that regulates cell division in root tips has been uncovered by genetic research led by the RIKEN Center for Sustainable Resource Science.
Mar 27, 2015
0
12
Recently biologists at the University of Massachusetts Amherst led by Wei-lih Lee have identified a new molecular player in asymmetric cell division, a regulatory protein named She1 whose role in chromosome- and spindle positioning ...
Cell & Microbiology
Nov 8, 2012
0
0
The concept of sharing is a basic social principle that most of us are taught from an early age on. In general, we are told to share equally with each other. Sharing is also a concept that applies to cells; they need to share ...
Cell & Microbiology
Dec 9, 2015
0
11
(PhysOrg.com) -- A long-held assumption about asymmetrical division of stem cells has cracked. Researchers at the University of Oregon report that the mitotic spindle does not act alone -- that cortical proteins help to position ...
Cell & Microbiology
Sep 1, 2010
0
0
A group of plant biologists at the Institute of Transformative Bio-Molecules (ITbM) of Nagoya University, the University of Tokyo, the Gregor Mendel Institute, and the University of Kentucky, have reported in the journal ...
Cell & Microbiology
Nov 29, 2016
0
4
