Researchers study evolution on the molecular level
The theory of evolution suggests that present-day organisms evolved from earlier life forms.
The theory of evolution suggests that present-day organisms evolved from earlier life forms.
Biochemistry
Dec 13, 2013
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(PhysOrg.com) -- Mitochondria, those battery-pack organelles that fuel the energy of almost every living cell, have an insatiable appetite for calcium. Whether in a dish or a living organism, the mitochondria of most organisms ...
Biochemistry
Jun 19, 2011
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(Phys.org) -- Researchers and doctors have gleaned new clues to the molecular mechanisms behind some of the most addictive substances in the world, thanks to two new studies that uncovered the structures of some of the most ...
Biochemistry
Apr 25, 2012
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To better understand what drives biological diversity on Earth, scientists have historically looked at genetic differences between species. But this only provides part of the picture. The traits of a particular species are ...
Plants & Animals
Sep 9, 2022
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Plants have the unique ability to regenerate entirely from a somatic cell, i.e., an ordinary cell that does not typically participate in reproduction. This process involves the de novo (or new) formation of a shoot apical ...
Plants & Animals
Jul 7, 2023
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Researchers today announced the creation of an imaging technology more powerful than anything that has existed before, and is fast enough to observe life processes as they actually happen at the molecular level.
Analytical Chemistry
Jun 30, 2014
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In an advance toward a much-needed early diagnostic test for Alzheimer's disease (AD), scientists have discovered that older women destined to develop AD have high blood levels of a protein linked to pregnancy years before ...
Biochemistry
Sep 28, 2011
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What happens at the molecular level when plants defend against invading pathogens? Previously it was assumed that the processes were roughly the same in all plants. However, this is not true, as a team of biologists from ...
Plants & Animals
Jul 15, 2019
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(Phys.org) —The central dogma of biology is that DNA gives rise to mRNA, which then gives rise to protein. Thus, it has been widely assumed that changes in specific mRNA levels are always accompanied by commensurate changes ...
Cell & Microbiology
Oct 28, 2013
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Biological arms races are commonplace in nature. Cheetahs, for example, have evolved a sleek body form that lends itself to rapid running, enabling them to feast upon similarly speedy gazelles, the fastest of which may evade ...
Evolution
May 27, 2022
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