Sentences with phrase «primitive cells»
"Primitive cells" refers to the basic building blocks or smallest units that form a larger structure or organism. These cells are simple and have basic functions, like carrying out essential processes necessary for life. They are the starting point from which more complex cells and organisms develop. Full definition
This gave further support to the evolutionary RNA world hypothesis, which holds that the key molecules in primitive cells were not proteins but RNA.
sciencemag.org
Stem cells are primitive cells which have the potential to divide endlessly, and the ability to differentiate into any cell type in the body — offering hope for future therapies.
Hopes for treating disease with stem cells from umbilical cord blood has received a major boost, following the discovery of primitive cells with clinical potential matching that of the far more controversial embryonic stem cells (ESCs).
The idea is that the mitochondria — cellular energy generators — in young, primitive cells function much better than those in the mature eggs collected for IVF.
Louis Allamandola and his colleagues at the NASA Ames Research Center have created primitive cells of a sortempty, two - layer membranes (see image) from elementary chemicals, exposed to conditions like those in interstellar clouds.
Every living thing on Earth — from humans to bacteria, from bluebells to blue whales — is thought to be descended from one single entity, a sort of primitive cell floating around in the primordial soup three or four billion years ago.
As these nucleotides connected to form strands, the thermodynamic and kinetic stability of pure RNA and DNA duplexes would drive these nucleic acids to accumulate in primitive cells, while less thermally stable complexes containing one strand of RNA and one strand of DNA fell apart.
But it was believed that this was a phenomenon of primitive cells and it was very static» describes Manel Esteller.
New research on bacteria examines exactly how these primitive cells could have evolved without such crucial structures.
The idea is the mitochondria — the cellular energy generators — in these primitive cells function better than those in the eggs of women struggling to conceive.
Laboratory experiments suggest that RNA could have replicated itself and carried out the other functions required to keep a primitive cell alive.
«Now, primitive cells, because they're programmed to grow, are more likely to be sensitive to carcinogenic stimuli,» Brind said.
These primitive cells are responsible for generating all immune cells including the innate arm of our immune response, the first line of defense in the war against TB.
«Taken together, these findings yield mutually reinforcing mechanisms of adsorption, concentration and stabilization that could have driven the emergence of primitive cells,» she said.
Members have the genetic material needed to build an internal skeleton, even though these primitive cells don't have a skeleton.
Stem cells are primitive cells that, as they grow, differentiate into the various specialised cells that make up the different organs — the brain, the heart, the kidney, and so on.
Even though most cells have specific jobs, some primitive cells — called stem cells — exist in everyone's body.
A mesenchymal stem cell is a primitive cell with the ability to self - replicate, reduce inflammation, fight apoptosis, and differentiate into multiple tissues.
Fibrous histiocytoma is a subtype of these cancers, possibly originating from a primitive cell, which can develop into either fibrous tissue or histiocytes.