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tag hormones evolution

mixing blue and pink smoke, symbolic of the muddled boundaries between sexes
Opinion: Biological Science Rejects the Sex Binary, and That’s Good for Humanity
Agustín Fuentes | May 12, 2022 | 5 min read
Evidence from various sciences reveals that there are diverse ways of being male, female, or both. An anthropologist argues that embracing these truths will help humans flourish.
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.
Recoding Life
Laasya Samhita | Jan 2, 2014 | 6 min read
Rewriting the genetic code can lead to a better understanding of how living cells work, and spawn new biotechnological applications.
Genetic Parasites and a Whole Lot More
Barry Palevitz | Oct 15, 2000 | 10+ min read
Photo: Ori Fragman, Hebrew University Hordeum spontaneum, the plant studied for BARE-1 retroelements. With genome sequences arriving almost as regularly as the morning paper, the public's attention is focused on genes--new genes to protect crops against pests; rogue genes that make bacteria resistant to antibiotics; faulty genes that, if fixed, could cure diseases such as muscular dystrophy. What many people don't realize is that genes account for only part of an organism's DNA, and in many c
Notebook
Eugene Russo | Dec 5, 1999 | 7 min read
Contents Pivotal pump Leptin limbo Clue to obesity Biotech Web site Helping hand Mapping malaria Notebook Pictured above are pigmented bacterial colonies of Deinococcus radiodurans, the most radiation-resistant organism currently known. DEINO-MITE CLEANUP In 1956, investigators discovered a potentially invaluable cleanup tool in an unlikely place. A hardy bacterium called Deinococcus radiodurans unexpectedly thrived in samples of canned meat thought to be sterilized by gamma radiation. The b
Notebook
Steve Bunk | Nov 7, 1999 | 7 min read
Content Jumping DNA Semen pharming Screening for heart risk Real-time signaling PubSCIENCE starts, PubMedCentral grows When time stands still Shutting down the pump Brain gain JUMPING DNA Mutations aren't transmitted only by inheritance--they can cross species, too, according to recent findings by John F. McDonald, head of the genetics department at the University of Georgia (I.K. Jordan et al., "Evidence for the recent horizontal transfer of long terminal repeat retrotransposon," Proceedings of
Assays Galore
Lanette Fee | Sep 21, 2003 | 9 min read
Courtesy of BD Biosciences Pharmingen  COLOR CODING: Multiplexed bead-based assays, like BD Biosciences' Cytometric Bead Array (shown), test for multiple analytes in a single vial. The key is in the colors: one hue indicates the bead ID, and the intensity of the second, how much protein has been captured. In today's fast-paced research environment, technologies for speedy, cost-efficient analyses reign supreme. As part of this general trend, techniques for multiplexing, that is, simultan
Illuminating Behaviors
Douglas Steinberg | Jun 1, 2003 | 6 min read
Courtesy of Genevieve Anderson If not for Nobel laureates Thomas Hunt Morgan, Eric R. Kandel, and Sydney Brenner, the notion of a general behavioral model might seem odd. Behaviors, after all, are determined by an animal's evolutionary history and ecological niche. They are often idiosyncratic, shared in detail only by closely related species. But, thanks to Morgan's research in the early 20th century, and Kandel's and Brenner's work over the past 35 years, the fly Drosophila melanogaster, t
Scientist Recipients Of MacArthur Fellowships An Eclectic Collection
Neeraja Sankaran | Sep 3, 1995 | 8 min read
As the school year commences, returning scientists are again applying for grants, awards, and other financial support to pursue their various disciplines. But six academic scientists among the 24 recipients of this year's John D. and Catherine T. MacArthur Foundation Fellowships--popularly known as the "genius awards"--are in an extremely fortunate position: Their explorations for the next five years will extend as far as their imaginations will take them. "When the director called me up to co
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,

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