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Genetic discoveries 'open new era' of cholera research. Recent discoveries may eventually help researchers prevent cholera bacteria from causing deadly illness, according to a report published in ...
A focus on new model organisms such as viruses and bacteria, along with the discovery of the double helical structure of DNA in 1953, marked the transition to the era of molecular genetics. In the following years, chemists developed techniques for sequencing both nucleic acids and proteins, while many others worked out the relationship between ...
1989: Thomas Cech discovered that RNA can catalyze chemical reactions, [60] making for one of the most important breakthroughs in molecular genetics, because it elucidates the true function of poorly understood segments of DNA. 1989: The human gene that encodes the CFTR protein was sequenced by Francis Collins and Lap-Chee Tsui.
Recent human evolution refers to evolutionary adaptation, sexual and natural selection, and genetic drift within Homo sapiens populations, since their separation and dispersal in the Middle Paleolithic about 50,000 years ago. Contrary to popular belief, not only are humans still evolving, their evolution since the dawn of agriculture is faster ...
In a new study, scientists discovered that your body's response to a certain protein could affect weight loss. Here's how it could affect drugs like Ozempic. Scientists Just Made a Major Genetic ...
In human genetics, the Mitochondrial Eve (more technically known as the Mitochondrial-Most Recent Common Ancestor, shortened to mt-Eve or mt-MRCA) is the matrilineal most recent common ancestor (MRCA) of all living humans. In other words, she is defined as the most recent woman from whom all living humans descend in an unbroken line purely ...
1937 – Hans Adolf Krebs and William Arthur Johnson discovered the tricarboxylic acid cycle. 1937 – In Genetics and the Origin of Species, Theodosius Dobzhansky applies the chromosome theory and population genetics to natural populations in the first mature work of neo-Darwinism, also called the modern synthesis, a term coined by Julian Huxley.
Ellsworth Dougherty proposed in 1948 that free-living nematodes of the sub-order Rhabditina might be useful for genetic study, noting their relative structural simplicity and invariant cell lineage . [4] Dougherty and Victor Nigon obtained the first mutant, from a laboratory culture of the closely related nematode Caenorhabditis briggsae. [5]