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Surpassing the Law of Averages
Jeffrey M. Perkel | Sep 1, 2009 | 7 min read
By Jeffrey M. Perkel Surpassing the Law of Averages How to expose the behaviors of genes, RNA, proteins, and metabolites in single cells. By necessity or convenience, almost everything we know about biochemistry and molecular biology derives from bulk behavior: From gene regulation to Michaelis-Menten kinetics, we understand biology in terms of what the “average” cell in a population does. But, as Jonathan Weissman of the University of Califo
The Genetics of Society
Claire Asher and Seirian Sumner | Jan 1, 2015 | 10 min read
Researchers aim to unravel the molecular mechanisms by which a single genotype gives rise to diverse castes in eusocial organisms.
Why, Oh Y?
Jef Akst | Jan 1, 2015 | 9 min read
A toothpick and a bit of chance shaped David Page’s career, which he has dedicated to understanding the mammalian Y chromosome and fetal germ cell development.
Asthma, Genetics, and the Environment
Karen Young Kreeger | Apr 6, 2003 | 8 min read
Courtesy of Eric Erbe and Chris Pooley, ARS Image Gallery  SPRING CLEANING TARGETS: Tyrophagus putrescentiae, better known as dust mites, are microscopic, sightless, eight-legged arthropods that are natural inhabitants of indoor environments. Their droppings are the most common trigger of perennial allergy and asthma symptoms. Asthma is a classic example of gene-environment interaction. A host of environmental triggers, from cigarette smoke to cockroaches, can set it off. A dozen or so g
Illustration showing two hands join, father or mother with child
Does Human Epigenetic Inheritance Deserve a Closer Look?
Catherine Offord | Apr 4, 2022 | 10+ min read
The concept of epigenetic inheritance has long been controversial. Some researchers hope that new data on cross-generational effects of environmental exposures will help settle the debate.
Elemental Shortage
Brendan Borrell | Nov 1, 2010 | 10+ min read
By Brendan Borrell ELEMENTAL SHORTAGE The world is running out of cheap phosphorus, the element that lies at the heart of great agricultural advances and thorny environmental problems. Biologists are only now beginning to understand what it means for evolution and human health. James Elser at a study site in southern Norway Although a limnologist in Phoenix and a molecular biologist in Atlanta have never met before, a single element ties them together.
Top 10 Innovations 2021
2021 Top 10 Innovations
The Scientist | Dec 1, 2021 | 10+ min read
The COVID-19 pandemic is still with us. Biomedical innovation has rallied to address that pressing concern while continuing to tackle broader research challenges.
How to Create a Successful Fish Tale?
A. J. S. Rayl | Aug 19, 2001 | 10+ min read
More than 80 percent of the planet's living organisms exist only in aquatic ecosystems. Some may harbor secrets to human origins, and clues, treatments--perhaps even cures--for human disease. Some are critical bioindicators that portend the health of the biosphere. Yet, overall, scientists know little about the biochemical processes of these life forms. The vast, rich knowledge within the oceans and freshwater systems on Earth remains virtually untapped, because in the world of biological resear
Ribozymes: Hearkening Back to an RNA World
Jeffrey Perkel | Sep 15, 2002 | 9 min read
Illustration: Ned Shaw LIKE MOLECULAR TOY-MAKERS, ribozyme researchers create tools with evolutionary, diagnostic, and therapeutic applications. Nearly 20 years ago, Tom Cech and Sidney Altman discovered that some naturally occurring RNAs could perform enzymatic reactions, earning these researchers the 1989 Nobel Prize in chemistry. Scientists have now identified several examples of RNA enzymes, or ribozymes. Most make or break the phosphodiester bonds in nucleic acid backbones, but some
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The Scientist Staff | Sep 27, 1992 | 3 min read
The University of Cincinnati Medical Center has established a $6.5 million Center for Environmental Genetics and has named Daniel W. Nebert, a professor of environmental health, to be its first director. Nebert says the center is the first of its kind in the world to study the genetic link between environmental contaminants and human health. The center opened at the University of Cincinnati in mid-August in conjunction with the National Institutes of Health's National Institute of Environmental

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