Hygienic conditions and sterile procedures are particularly important in hospitals, kitchens and sanitary facilities, air conditioning and ventilation systems, in food preparation and in the manufacture of packaging material. ...
Materials Science
Jun 3, 2015
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12
Almost all organisms evolve from a single cell, a fertilised egg. In the first hours after fertilisation, the fate of its future development is determined. It is dictated by the separation of cells that will become sperm ...
Biotechnology
Aug 3, 2009
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0
Germ cells, the reproductive cells that eventually become eggs and sperm, are set aside early in embryonic development, when the embryo is just a hollow ball of cells called the gastrula. This means that the cells transferring ...
Cell & Microbiology
Nov 1, 2022
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3
A research group at the University of Tokyo has identified a Pac-Man-like enzyme called "Trimmer" involved in the generation of a class of small RNAs, which protect the genome of germ cells from unwanted genetic rewriting.
Biotechnology
Feb 25, 2016
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6
Johns Hopkins researchers have discovered an unexpected phenomenon in the organs that produce sperm in fruit flies: When a certain kind of stem cell is killed off experimentally, another group of non-stem cells can come out ...
Cell & Microbiology
Apr 17, 2014
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0
For the first cell to develop into an entire organism, genes, RNA molecules and proteins have to work together in a complex way. At first, this process is indirectly controlled by the mother. At a certain point in time, the ...
Cell & Microbiology
Dec 6, 2022
0
108
During fruit fly embryo formation, primordial germ cells—the stem cells that will later form eggs and sperm—must travel from the far end of the embryo to their final location in the gonads. Part of the primordial germ ...
Cell & Microbiology
Sep 16, 2022
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18
Very little was known till now about DNA repair by homologous recombination, which is fundamental for human health. Now an ETH research group has for the first time isolated and studied all the key proteins involved in this ...
Cell & Microbiology
Aug 19, 2019
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50
Primordial germ cells (PGCs) are the first germ-cell population established during development. The survival of species is dependent upon PGCs in sexually reproducing organisms because they are the founder cells for the germline.
Cell & Microbiology
May 10, 2022
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58
Farmers treat seeds chemically in order to rid them of pest infestation. Now researchers have developed a method that kills pathogens without harming the environment. Pioneering seed suppliers are already implementing the ...
Ecology
Feb 5, 2013
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