For a slow-growing microbe that multiplies infrequently, Mycobacterium tuberculosis, the pathogen that causes tuberculosis (TB) has long puzzled researchers as to how it develops resistance to antibiotics so quickly, in a ...
Evolution
Nov 18, 2020
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45
Similar to genetic mutations, epigenetic changes, i.e. gene modifications that do not occur on the primary DNA sequence, sometimes arise accidentally in plants and can be transmitted across generations. Using trees as a model, ...
Plants & Animals
Nov 18, 2020
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68
How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised ...
Molecular & Computational biology
Nov 10, 2020
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9
Enzymes enable biochemical reactions that would otherwise not take place on their own. In nature, it is mostly proteins that function as enzymes. However, other molecules can also perform enzymatic reactions—for example ...
Biotechnology
Oct 28, 2020
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17
A research team from Cologne has discovered that a change in the DNA structure—more precisely in the chromatin—plays a decisive role in the recovery phase after DNA damage. The key is a double occupation by two methyl ...
Cell & Microbiology
Oct 13, 2020
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283
In the search for the chemical origins of life, researchers have found a possible alternative path for the emergence of the characteristic DNA pattern: According to the experiments, the characteristic DNA base pairs can form ...
Biochemistry
Oct 2, 2020
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17
Results of recent studies involving valproic acid, used for decades as an anti-convulsant drug, show that it can interact with the conformation of DNA and regulate gene expression.
Cell & Microbiology
Sep 28, 2020
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6
Some of the genetic differences that have arisen between domesticated chickens and their wild ancestors, the red junglefowl, are linked to epigenetic changes, according to a new study published in Nature Ecology & Evolution. ...
Plants & Animals
Sep 21, 2020
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213
Mice that grow up in stimulating environments not only become smarter and more curious but are also more likely to develop individualized "personalities," a new study showed Wednesday.
Plants & Animals
Aug 27, 2020
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165
Scientists have unveiled a correlation between high blood lead levels in children and methylation of genes involved in haem synthesis and carcinogenesis, indicating a previously unknown mechanism for lead poisoning.
Cell & Microbiology
Aug 7, 2020
0
80
