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(Phys.org)—Sandia National Laboratories Truman Fellow Anne Ruffing has engineered two strains of cyanobacteria to produce free fatty acids, a precursor to liquid fuels, but she has also found that the process cuts the bacteria's ...
Biotechnology
Jan 7, 2013
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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
An intriguing study led by the University of Colorado Boulder may provide a powerful new tool in the quiver of forensic scientists attempting to determine the time of death in cases involving human corpses: a microbial clock.
Other
Sep 24, 2013
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(Phys.org)—A team of researchers affiliated with several institutions in the U.S. has found an example of a single-celled eukaryote fossil with evidence of mineralizing in Yukon territory, Canada. In their paper published ...
Egg cells are the largest single cells on the planet. Their size—often several to hundreds of times the size of a typical cell—allows them to grow into entire organisms, but it also makes it difficult to transport nutrients ...
Molecular & Computational biology
Apr 18, 2024
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1423
(Phys.org)—Cell migration is an intrinsic feature of multicellular organisms, enabling such processes as embryo development, wound healing, and immune responses. These activities require cells to move freely within tissues. ...
To trace which proteins are produced and when, researchers say, just follow the ribosome "footprints."
Cell & Microbiology
Dec 16, 2018
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168
Using the word predation may seem surprising when we talk about the first organisms that set out to eat other organisms, for they were not deadly predators with sharp teeth and claws, but small single-celled life forms that ...
Evolution
Dec 20, 2022
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231
(PhysOrg.com) -- Before any cell - healthy or cancerous - can divide, it has to replicate its DNA. So scientists who want to know how normal cells work - and perhaps how to stop abnormal ones - are keen to understand this ...
Cell & Microbiology
Mar 6, 2012
5
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A critical feature of many multicellular lifeforms on Earth are hard, biological structures, such as animal bones and snail shells that are made from minerals.
Archaeology
Aug 28, 2017
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