ADVERTISEMENT

404

Not Found

Is this what you were looking for?

tag ribosomes evolution

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
Tailor-Made Genome
Tia Ghose | Jul 18, 2011 | 2 min read
A method for rapidly replacing stop codons throughout the genetic code of E. coli paves the way for biomanufacturing designer proteins.
The Gates of Immortality
Yves Barral | Oct 1, 2010 | 10+ min read
By Yves Barral The Gates of Immortality Did biology evolve a way to protect offspring from the ravages of aging by creating a physical barrier that separates the parent from its young? Dr. Stanley Flegler, Visuals Unlimited he idea that every organism must age was a concept that surprised many biologists. For a long time, aging was thought to be a process occurring only in multicellular organisms. The reason for this arguably odd presumption was that we knew so
Scientists Debate RNA's Role At Beginning Of Life On Earth
Ricki Lewis | Mar 30, 1997 | 9 min read
Sidebar: RNA's Role at Beginning of Life - For Further Information Before there was life, there were chemicals. The idea that ribonucleic acid (RNA), because of its catalytic capability and multiple roles in protein synthesis, was the chemical that led directly to life is termed the RNA world hypothesis. Although the phrase "RNA world" is generally attributed to Walter Gilbert, Harvard University's Carl M. Loeb University Professor, in a short 1986 paper, the idea of RNA's importance at the beg
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
Ribozymes: Hearkening Back to an RNA World
Jeffrey Perkel | Sep 15, 2002 | 9 min read
Illustration: Ned Shaw LIKE MOLECULAR TOY-MAKERS, ribozyme researchers create tools with evolutionary, diagnostic, and therapeutic applications. Nearly 20 years ago, Tom Cech and Sidney Altman discovered that some naturally occurring RNAs could perform enzymatic reactions, earning these researchers the 1989 Nobel Prize in chemistry. Scientists have now identified several examples of RNA enzymes, or ribozymes. Most make or break the phosphodiester bonds in nucleic acid backbones, but some
Genome Economy
Ricki Lewis | Jun 10, 2001 | 10 min read
The Human Genome Project's discovery1 that the human body runs on an instruction manual of a mere 35,000 or so genes--compared to the worm's 19,000, the fruit fly's 13,000, and the tiny mustard relative Arabidopsis thaliana's 25,000--placed humanity on an even playing field with these other, supposedly simpler, organisms. It was a humbling experience, but humility quickly gave way to awe with the realization that the human genome might encode 100,000 to 200,000 proteins. Scientists base this num

Run a Search

ADVERTISEMENT