People say "When pigs fly" to describe the impossible. But even if most mammals are landlubbers, the ability to glide or fly has evolved again and again during mammalian evolution, in species ranging from bats to flying squirrels. ...
Evolution
49 minutes ago
0
1
"Random DNA" is naturally active in the one-celled fungi yeast, while such DNA is turned off as its natural state in mammalian cells, despite their having a common ancestor a billion years ago and the same basic molecular ...
Evolution
Mar 6, 2024
0
13
The gut microbiome—the population and variety of bacteria within the intestine—is thought to influence a number of behavioral and disease traits in humans. Most obviously, it affects intestinal health. Cancer, inflammatory ...
Cell & Microbiology
Oct 16, 2023
0
82
Researchers at ETH Zurich recently identified a previously unknown compartment in mammalian cells. They have named it the exclusome. It is made up of DNA rings known as plasmids. The researchers have published details of ...
Cell & Microbiology
Oct 2, 2023
0
716
Over the past 100 million years, mammals have adapted to nearly every environment on Earth. Scientists with the Zoonomia Project have been cataloging the diversity in mammalian genomes by comparing DNA sequences from 240 ...
Evolution
Apr 27, 2023
0
581
The sled dog Balto has been celebrated in books and movies for his role in delivering desperately needed diphtheria antitoxin to Nome, Alaska, in 1925. Now, his DNA has enabled scientists to explore the genetics of 1920s ...
Evolution
Apr 27, 2023
0
3816
A team of scientists led by Dr. Kei-ichi Takata from the Center for Genomic Integrity (CGI) within the Institute for Basic Science (IBS), has discovered a new type of DNA repair mechanism that cancer cells use to recover ...
Cell & Microbiology
Mar 16, 2023
0
53
Researchers at New York University have created artificial Hox genes—which plan and direct where cells go to develop tissues or organs—using new synthetic DNA technology and genomic engineering in stem cells.
Biotechnology
Jun 30, 2022
0
220
Natural selection has produced mammals that age at dramatically different rates. Take, for example, naked mole rats and mice; the former can live up to 41 years, nearly ten times as long as similar-size rodents such as mice.
Cell & Microbiology
May 31, 2022
0
73
Cells contain machinery that duplicates DNA into a new set that goes into a newly formed cell. That same class of machines, called polymerases, also build RNA messages, which are like notes copied from the central DNA repository ...
Molecular & Computational biology
Jun 11, 2021
39
12351
