Scientists for the first time have found strong evidence that RNA and DNA could have arisen from the same set of precursor molecules even before life evolved on Earth about four billion years ago.
Biochemistry
Apr 1, 2019
59
906
(PhysOrg.com) -- In the chemistry of the living world, a pair of nucleic acids—DNA and RNA—reign supreme. As carrier molecules of the genetic code, they provide all organisms with a mechanism for faithfully reproducing ...
Biochemistry
Jan 9, 2012
117
516
Caltech scientists have produced the most detailed map yet of the massive protein machine that controls access to the DNA-containing heart of the cell.
Biochemistry
Apr 15, 2016
0
2157
A research team from the Department of Energy's Oak Ridge National Laboratory has performed the first-ever direct nanoscale examination of a living cell membrane. In doing so, it also resolved a long-standing debate by identifying ...
Biochemistry
May 24, 2017
0
1883
More than 20 years ago, a billboard in China piqued the interest of a chemical biologist. It endorsed an extract from the plant known as the "thunder god vine" as an immunosuppressant. A brief review of published research ...
Biochemistry
Sep 7, 2016
0
1053
New scientific research raises the possibility that advanced versions of T. rex and other dinosaurs — monstrous creatures with the intelligence and cunning of humans — may be the life forms that evolved on other ...
Biochemistry
Apr 11, 2012
35
510
(Phys.org) —While the natural world is replete with compounds that form the basis of many disease-fighting pharmaceuticals, it is also the case that humans and other mammals produce their own host-defense peptide-derived ...
Vibrant green leaves sprout from tall fragrant plants sitting neatly in two rows of terracotta pots in Valerie Sponsel's UTSA biology laboratory. One floor just above her is the chemistry lab of Francis Yoshimoto, who is ...
Biochemistry
Sep 8, 2023
0
503
As more of the nation has adopted legal marijuana, a glut of products containing the psychoactive ingredient in marijuana, THC, as well as other cannabinoids that can be derived from THC or the plant itself, has emerged in ...
Biochemistry
Aug 14, 2023
0
499
(PhysOrg.com) -- In a new study, biochemist James San Antonio and colleagues offer evidence to support the claims by Mary Higby Schweitzer back in 2005, that she and her colleagues had unearthed a soft tissue specimen that ...
