Starting about 7,000 years ago, something weird seems to have happened to men: Over the next two millennia, recent studies suggest, their genetic diversity —specifically, the diversity of their Y chromosomes—collapsed. ...
Biotechnology
May 29, 2018
57
1689
In a paper published in the April 25 early online edition of the Proceedings of the National Academy of Sciences, researchers at the University of California, San Diego School of Medicine, the Gladstone Institutes in San ...
Biotechnology
Apr 25, 2011
6
0
In the arid regions of the American Southwest, an unseen world lies beneath our feet. Biocrusts, or biological soil crusts, are communities of living organisms. These industrious microbes include cyanobacteria, green algae, ...
Ecology
Apr 20, 2023
0
238
Think your DNA is all human? Think again. And a new discovery suggests it's even less human than scientists previously thought.
Biotechnology
Mar 22, 2016
7
945
In one video, you can see a hungry caterpillar, first working around a leaf's edges, approaching the base of the leaf and, with one last bite, severing it from the rest of the plant. Within seconds, a blaze of fluorescent ...
Biotechnology
Sep 13, 2018
15
2686
(PhysOrg.com) -- For the first time, scientists have developed a method for generating accurate three-dimensional models of the entire DNA strand of a cell, known as a genome.
Biotechnology
Jan 4, 2012
5
0
Octopuses, squid, and cuttlefish often do not follow the genetic instructions in their DNA to the letter. Instead, they use enzymes to pluck out specific adenosine RNA bases (some of As, out of the As, Ts, Gs, and Us of RNA) ...
Biotechnology
Apr 6, 2017
2
2173
New probes allow scientists to see four-stranded DNA interacting with molecules inside living human cells, unraveling its role in cellular processes.
Biotechnology
Jan 8, 2021
4
13967
Our lungs, bones, blood vessels and other major organs are made up of cells, and one way our bodies keep us healthy is by using protein messengers known as ligands that bind to receptors on the surfaces of cells to regulate ...
Biotechnology
Jun 8, 2020
0
4839
They're prickly on the outside, sweet on the inside, and beloved for their iconic pink shells and pearly, fragrant fruit. In the US, you might encounter them as a flavorful ingredient in bubble tea, ice cream or a cocktail. ...
Biotechnology
Jan 3, 2022
0
394
