Prokaryotic single-celled organisms, the ancestors of modern-day bacteria and archaea, are the most ancient form of life on our planet, first appearing roughly 3.5 billion years ago. The first eukaryotic cells appeared around ...
Evolution
Mar 13, 2024
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25
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
(PhysOrg.com) -- Long a staple of nature documentaries, the somewhat bizarre development of a grub-like pink marsupial embryo outside the mother's womb is curious in another way.
Plants & Animals
Nov 29, 2010
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With a mate and a nest to protect, the male threespined stickleback is a fierce fish, chasing and biting other males until they go away.
Biotechnology
Nov 15, 2012
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Why do some people seem to never get sick while others consistently fall prey to viruses and bacteria? How can the spouse of a sick person avoid catching their partner's bug despite sleeping next to them every night? Questions ...
Cell & Microbiology
Jun 16, 2022
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149
Research Assistant Professor Seth Taylor and Professor David Miller, both in Vanderbilt University's Department of Cell and Developmental Biology, have established a gene expression atlas for the nervous system of the nematode ...
Biotechnology
Jul 27, 2021
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804
There are cells in the body known as pluripotent stem cells that are yet to specialize in a particular biological function. These cells maintain the potential to become any of the possible cell types in an organism. Pluripotent ...
Cell & Microbiology
Apr 28, 2022
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12
(Phys.org)—A University of Michigan biophysical chemist and his colleagues have discovered the smallest and fastest-known molecular switches made of RNA, the chemical cousin of DNA. The researchers say these rare, fleeting ...
Cell & Microbiology
Oct 7, 2012
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0
Fears that sex-linked chromosomes, such as the male Y chromosome, are doomed to extinction have been refuted in a new genetic study which examines the sex chromosomes of chickens.
Biotechnology
May 8, 2012
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0
The computer assisted design (CAD) tools that made it possible to fabricate integrated circuits with millions of transistors may soon be coming to the biological sciences. Researchers at the Joint BioEnergy Institute (JBEI) ...
Biotechnology
Dec 22, 2011
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