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Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox, PhD | Jul 5, 2022 | 10+ min read
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Book Excerpt from The Price of Altruism: George Price and the Search for the Origins of Kindness
Oren Harman | Aug 31, 2011 | 6 min read
In Chapter 13, "Altruism," author Oren Harman discusses how George Price's and John Maynard Smith's 1973 formulation of evolutionarily stable strategy (ESS) meshes with examples of altruism in nature.
Mutants, And Their Suppliers, Are Key To Modern Research
Ricki Lewis | Sep 29, 1991 | 8 min read
Through History Mutants forged the field of genetics, starting with Gregor Mendel's short or tall, yellow or green, round or wrinkled pea plants. Since Mendel's work in the 19th century, geneticists have used white-eyed flies to demonstrate sex linkage and bread mold spore variants to study the recombination of traits that occurs during sexual reproduction. Christiane Nusslein-Volhard and Edward Lewis, two of this year's Lasker award winners, are being recognized for pioneering work in developm
science@home pandemic coronavirus covid-19 research academic crowdsourcing work from home
Opinion: Use the Pandemic to Expand the Lab to the Home
Michael Levin | Jun 30, 2020 | 5 min read
Researchers have been forced to reckon with restrictions on lab access. Now is the time to figure out how to make science portable and widely accessible.
How Cells Find Their Way
Laura Defrancesco | Sep 2, 2001 | 5 min read
Organisms need to sense their environment. By sensing, they can develop, heal wounds, protect against invaders, and create blood vessels. Chemotaxis, or directional sensing, allows cells to detect chemicals with exquisite sensitivity. Some chemotactic cells can sense chemical gradients that differ by only a few percent from a cell's front to its back. Although discovery of the molecule types involved in chemotaxis, as with other kinds of cell signaling events, has mounted, the details of how thi
Microbial Diversity
Ed Yong | Jul 14, 2013 | 3 min read
By sequencing bacterial and archaeal genomes from single cells, scientists have filled in many uncharted branches of the tree of life.
Drug Makers on the Apoptotic Trail
Ted Agres | Jun 24, 2001 | 4 min read
Apoptosis, a key process in the development of embryonic tissue differentiation, later helps to regulate the normal cellular life cycle by destroying damaged cells. When something goes awry, too little apoptosis can make cancer cells resistant to chemotherapy and even death-defiant. At the other extreme, premature or excessive apoptosis has been linked to neurodegenerative diseases, such as Alzheimer's, and to nerve cell loss in strokes. Not surprisingly, many major pharmaceutical companies rec
All's Well that Ends Well: A Profile of Specialty Microwell Plates
Brent Johnson | Sep 26, 1999 | 10+ min read
Date: September 27, 1999Table of Specialty Microplates The story of the microplate is one of those tales of history that either has been forgotten or was never clearly understood. According to Barry Lazar of Dynex Technologies, formerly Dynatech Laboratories, the origin of what is now commonly referred to by Dynex's registered trademark of Microtiter plates began with Gyola Takatsy, a Hungarian-born scientist who was trying to scale down serology tests. His first prototype became available in 1

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