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Latest Organism Stories

2012-01-24 21:51:11

Division of labor is not only a defining feature of human societies but is also omnipresent among the building blocks of biological organisms and is considered a major theme of evolution. Theoretical Biologists Claus Rueffler and Joachim Hermisson from Vienna University in collaboration with Günter P. Wagner from Yale University identified necessary conditions under which division of labor is favored by natural selection. The results of their study are published in the...

New Study Sheds Light On The Evolution Of Multicellularity
2012-01-19 12:21:23

One of the greatest mysteries of evolutionary biology revolves around the question of how Earth´s original single-celled ancestors – the predecessors of all life on the planet – first made the critical transition to multicellularity. A new study published this week in Proceedings of the National Academy of Sciences (PNAS), however, points out that the switch may not have been as difficult as most scientists have speculated. The traditional paradigm for attempting to...

2012-01-18 00:16:54

More than 500 million years ago, single-celled organisms on the Earth´s surface began forming multicellular clusters that ultimately became plants and animals. Just how that happened is a question that has eluded evolutionary biologists. But scientists in the University of Minnesota´s College of Biological Sciences have replicated that key step in the laboratory using natural selection and common brewer´s yeast, which are single-celled organisms. The yeast...

Biologists Replicate Key Evolutionary Step In Life On Earth
2012-01-17 08:00:10

Follow how single-celled organisms began forming multi-cellular clusters More than 500 million years ago, single-celled organisms on Earth's surface began forming multi-cellular clusters that ultimately became plants and animals. Just how that happened is a question that has eluded evolutionary biologists. Now scientists have replicated that key step in the laboratory using common Brewer's yeast, a single-celled organism. The yeast "evolved" into multi-cellular clusters that work...

2012-01-06 08:00:00

The Biology and Health Website EurekaMag.com publishes insights into all areas of biological science. The latest insights cover animal cells, which are eukaryotic cells containing complex structures enclosed within membranes, and ideal protein, which is a commercial diet developed by a medical doctor 25 years ago. The insight into MOA covers "Mode of Action," which has a number of different meanings within the biological sciences. Mannheim, Germany (PRWEB) January 06, 2012 The Biology and...

2011-12-23 08:00:00

The Bio Magazine EurekaMag.com publishes articles in all areas of biological science. The latest articles cover Interphase which is the phase of the cell cycle in which the cell conducts its regular cell functions including preparation for cell division, Prokaryotic Cells which do not have a membrane-bound nucleus and no chromosomal DNA, but their genetic information is stored in plasmids. The article on Anatomy and Physiology covers the structure and function of living organisms which...

2011-10-05 19:05:58

Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of molecular parts, a chemical soup out of which evolution gradually constructed more complex forms. Some scientists still debate whether it was even a cell. New evidence suggests that LUCA was a sophisticated organism after all, with a complex structure recognizable as a cell, researchers report....

2011-09-22 21:30:32

Emergence of ENaC, sodium pump coincides with first appearance of multi-celled creatures Maintaining fluid balance in the body is essential to survival, from the tiniest protozoa to the mightiest of mammals. By researching recent genomic data, Swiss researchers have found genetic evidence that links this intricate process to a turning point in evolution. The study was led by Bernard Rossier, Professor Emeritus, University of Lausanne, along with colleagues Romain A. Studer, Emilie...

synthetic_bio_h
2011-09-14 23:06:31

Scientists have synthesized from scratch a so-called chromosome "arm"--one of the largest DNA molecules ever synthesized, and developed a new method for shuffling an organism's genetic deck Scientists have replaced all of the DNA in the arm of a yeast chromosome with computer-designed, synthetically produced DNA that is structurally distinct from its original DNA to produce a healthy yeast cell. (Yeast chromosomes are often depicted as bow tie-shaped--with each chromosome bearing two...

2011-09-13 12:41:17

Professor André Hudson's research could advance algaecide development Algaecide is no crime. Consider that some strains of algae produce toxins lethal to wildlife, fish and plants. Even the less harmful varieties suck oxygen out of water, suffocating living creatures in lakes, ponds, pools and aquariums. Recent algal blooms in the Great Lakes, for instance, threaten critical ecosystems. Rochester Institute of Technology scientist André Hudson and colleagues...


Latest Organism Reference Libraries

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2014-01-12 00:00:00

Biology is the study of living organisms. Before the 19th century, biology was known as natural history (the study of all living things). Gottfried Reinhold Treviranus was the first person to coin the term biology. Biology comes from the Greek words bios (meaning "life") and logia (meaning "study of"). It is a common science that is a standard subject in schools and universities around the world. Over a million papers are published annually in biology and medicinal journals. Not just a...

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