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tag pcr disease medicine evolution culture ecology

bacteria and DNA molecules on a purple background.
Engineering the Microbiome: CRISPR Leads the Way
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 10+ min read
Scientists have genetically modified isolated microbes for decades. Now, using CRISPR, they intend to target entire microbiomes.
Evolution, Resisted
Elie Dolgin | Oct 1, 2009 | 10+ min read
Scientists are trying to design the last malaria control agent the world will ever need.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
Diseases by Design
Jennifer Fisher Wilson | Jun 1, 2003 | 6 min read
Jacob Halaska, ©Index Stock Imagery Researchers like mice. US government statistics reveal that the whiskered ones show up in 90% of all experiments. Mice come cheap, procreate often, and die fairly quickly. And although evolution separates mouse from human by an estimated 75 to 100 million years, biologically and genetically speaking, they share a lot; as much as 85% of the DNA in mice is the same in humans. The research ground that mice have domineered for a century, however, is reced
A fruit bat in the hands of a researcher
How an Early Warning Radar Could Prevent Future Pandemics
Amos Zeeberg, Undark | Feb 27, 2023 | 8 min read
Metagenomic sequencing can help detect unknown pathogens, but its widespread use faces challenges.
Illustration of viruses represented with different colors overlapping each other.
What Happens When You Catch More than One Virus?
Alejandra Manjarrez, PhD | Dec 7, 2022 | 8 min read
The “tripledemic” shines a spotlight on viral interference, in which one infection can block another.
PCR Primed To Spur Chain Of Applications
Holly Ahern | Jun 25, 1995 | 10+ min read
What would you do if your research interests revolved around obtaining DNA from a bacterium preserved for millions of years in the gut of a bee stuck in amber, matching up a murderer to crime- scene blood half a century old, or cloning genes from a 1,000- year-old mummy? Most scientists would first consider PCR--the polymerase chain reaction--as a technique for approaching problems such as these. With PCR, minute quantities of nucleic acids can be amplified millions of times into sufficient qua
Illustration showing a puzzle piece of DNA being removed
Large Scientific Collaborations Aim to Complete Human Genome
Brianna Chrisman and Jordan Eizenga | Sep 1, 2022 | 10+ min read
Thirty years out from the start of the Human Genome Project, researchers have finally finished sequencing the full 3 billion bases of a person’s genetic code. But even a complete reference genome has its shortcomings.
On Form and Substance in the Life Sciences
Juan Bouzat | Feb 4, 2001 | 5 min read
Illustration: A. Canamucio In a recent issue of The Scientist, an opinion article by Raymond J. O'Connor suggests that, in contrast to biomedical research, ecology has lagged behind the surging advances of most of the life sciences.1 O'Connor's main argument for the putative lag of ecological sciences is the failure to distinguish form from substance in the hypothetico-deductive research that drives most current scientific endeavors. Categorizing most ecological sciences as descriptive and poss
Conserving Our Shared Heritage
Thomas E. Lovejoy | Oct 1, 2011 | 5 min read
Reversing catastrophic threats to our planet’s biodiversity is not optional: our lives depend on it.

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