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tag embryos evolution

a trio of infant mice, two brown mice on the ends and one white mouse in the middle
Mice Pass Epigenetic Tweaks to Pups
Katherine Irving | Feb 17, 2023 | 5 min read
An engineered methylation pattern persisted for four generations of mice, demonstrating transgenerational epigenetic inheritance can occur in mammals.
bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
Steal My Sunshine
David Smith | Jan 1, 2013 | 10+ min read
How photosynthetic organisms get taken up, passed around, and discarded throughout the eukaryotic domain
Sly Guys
The Scientist | Jul 1, 2014 | 10+ min read
Across the animal kingdom, dominance isn’t the only way for a male to score. Colluding, sneaking around, or cross-dressing can work, too.
Notebook
The Scientist Staff | Jul 7, 1996 | 7 min read
On June 14, a House Appropriations subcommittee gave some researchers cause for celebration when it surprisingly voted to remove a provision in a government spending bill that extended a ban on federal funding of human embryo research. However, their glee was short-lived. The full panel turned around on June 25 and adopted an amendment to continue the research ban. John Eppig, senior staff scientist at Jackson Laboratory in Bar Harbor, Maine, doubts that the ban will be overturned anytime soon,
Cancer Kismet
Jenny Rood | Apr 1, 2015 | 4 min read
Fate mapping allows researchers to follow cancer progression from its cell type of origin.
Mouse, fly wound repair linked
Charles Choi(cqchoi@nasw.org) | Apr 14, 2005 | 3 min read
Reports suggest common control factors for the healing of mammal skin and insect cuticle
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 Biggest Stories in Bioscience 2005
Ishani Ganguli | Dec 4, 2005 | 8 min read
Life scientists have been challenged more than ever this year not just to critically analyze data, but to better interpret those data for an increasingly critical public.
For Olfaction, a Hypothesis is Felled
Peter Mombaerts | Oct 24, 2004 | 6 min read
Peter MombaertsCourtesy of Peter MombaertsRarely do scientific studies claim that something is not the case. Rarer still do negative results appear in top-tier journals. Yet two recent papers in Nature describe what olfactory sensory neurons do not do.12The olfactory system is often compared to the immune system. The key cell types in each system, the olfactory sensory neuron (OSN) and the lymphocyte, can detect a wide variety of chemicals, both natural and synthetic. Chemical recognition by the

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