Evolution is often portrayed as a "tinkering" process, one that makes use of slight modifications to pre-existing capabilities. So how do organisms evolve brand new structures?
Evolution
Sep 1, 2022
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29
ETH Zurich researchers have developed a model that explains how nerve cells in the brain connect during development. Their model reveals that the crucial factor is progressive cell division. This process leads naturally to ...
Cell & Microbiology
Aug 25, 2022
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115
The tau protein is an important factor linked to the development of human neurodegenerative diseases, including Alzheimer's disease. Yet there is still much we do not know about tau and other similar proteins. The most recent ...
Cell & Microbiology
Aug 23, 2022
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127
DNA damage caused by factors such as ultraviolet radiation affect nearly three-quarters of all stem cell lines derived from human skin cells, say Cambridge researchers, who argue that whole genome sequencing is essential ...
Molecular & Computational biology
Aug 11, 2022
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240
The average human swallows 500 to 700 times a day. Imagine if each of those swallows were a struggle.
Cell & Microbiology
Aug 8, 2022
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136
Only one thousandth of a milligram of the bacterial botulinum toxin is necessary to kill a living organism. The toxin unfolds its lethal effect by preventing the release of neurotransmitters at the point where nerve cells ...
Cell & Microbiology
Aug 3, 2022
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96
Thanks to genetic tools that allow computers to accurately count neurons from microscopy images, EPFL researchers have estimated with unprecedented accuracy the number of neurons and other types of cells in the brain of fruit ...
Cell & Microbiology
Jul 19, 2022
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30
A team co-led by a City University of Hong Kong (CityU) neuroscientist has identified a key mechanism of a biological clock that ensures roundworms stay regular by defecating at steady intervals.
Plants & Animals
Jul 13, 2022
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56
A team of researchers affiliated with several institutions in the U.S. and Brazil has found evidence that pumpkin toadlets (Brachycephalus) have poor jumping skills because their inner ear canals are too small. In their paper ...
Genes are the carriers of our genetic information. They are read in our cells and used to produce ribonucleic acids (RNAs). During this process, termed transcription, the enzyme RNA polymerase II has a decisive influence ...
Molecular & Computational biology
May 4, 2022
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