A team of Université Laval researchers has cast into doubt a tenet of evolutionary biology according to which organisms with more than one copy of the same gene in their genome are more resilient to genetic perturbations. ...
Evolution
Feb 9, 2017
0
31
About 1.5 to 2 billion years ago, the great evolutionary 'big fish, little fish' engulfment occurred. Somehow, scientists think, one bacteria swallowed another, creating a new type of cell, the eukaryotes.
Cell & Microbiology
Dec 13, 2016
0
192
In a new scientific study, researchers at Uppsala University have shown that Scandinavian wolves carry around 100,000 harmful mutations in their genome. As long as the harmful mutations can be compensated by a healthy genetic ...
Ecology
Dec 14, 2022
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4
The introduction of Texas pumas to Florida in the 1990s as part of a genetic rescue may have helped save Florida panthers from extinction, but it also brought some harmful mutations with it along the way.
Plants & Animals
Aug 23, 2022
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7
The evolution of sexual reproduction in living beings is one of the biggest mysteries in biology. There are two known modes of reproduction: asexual, where the organism creates clones of itself, and sexual, where gametes ...
Evolution
Aug 19, 2022
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5
Vaquita porpoises are on the edge of extinction, with just 10 left in their sole habitat within Mexico's Gulf of California.
Plants & Animals
May 8, 2022
0
70
A team of researchers from Skoltech and their Russian and U.S. colleagues have gathered two dozen mushrooms of the species Schizophyllum commune and analyzed their DNA, gaining insights into mutations that cancel the negative ...
Evolution
Dec 16, 2021
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20
Population bottlenecks contribute to the accumulation of several harmful mutations that cause age-related illnesses in killifish—a finding that may help answer a key question about aging.
Plants & Animals
Sep 1, 2020
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7
Antioxidants such as vitamin C could help reduce harmful effects from hexavalent chromium, according to a new study performed with human cells. The contaminant, which is often produced by industrial processes, was featured ...
Cell & Microbiology
Apr 8, 2019
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8
We are all mutants. Every characteristic that defines our species is the result of a genetic mutation somewhere in the history of evolution. And the same is true for every other organism on the planet. Yet more often than ...
Biotechnology
Apr 16, 2018
0
10
