Tag: tryptophan

^{Type
post

Author
Rob Stadler

Date
February 4, 2026

Categories
Biology
Evolution
Genetics
Tagged
, adenine, biochemists, E. coli, First Rule of Adaptive Evolution, fitness, fossil record, gene, gene transcription, genes, genetics, genotype, homology, information, James Tour, lactose, Michael Behe, natural selection, promoter, random mutations, regulatory control, researchers, Rice University, S. cerevisiae, tryptophan, W303, When Can I Trust What Scientists Say? (series), yeast, YouTube videos}

On Evolution, Here Is What We Can Believe with High Confidence

_{Rob Stadler
February 4, 2026

Biology, Evolution, Genetics

9}

In a pair of YouTube videos, Rice University chemist James Tour and I reviewed more than ten recent studies of experimental evolution. Read More ›

^{Type
post

Author
Jonathan McLatchie

Date
July 30, 2025

Categories
Biology
Evolution
Intelligent Design
Tagged
, amino acids, Arginine, biosynthesis, blind processes, design logic, DNA, engineering, enzymes, evolution, genes, histidine, homology, intelligent design, mRNA, operons, prokaryotes, recurring design logic, regulation, Ribosome, RNA polymerase, transcription, translation, tryptophan, unguided processes}

Recurring Design Logic in Attenuation Mechanisms

_{Jonathan McLatchie
July 30, 2025

Biology, Evolution, Intelligent Design

4}

Despite the striking parallels between these systems in terms of the design logic, these attenuation systems are not evolutionarily related to one another. Read More ›

^{Type
post

Author
Jonathan McLatchie

Date
July 29, 2025

Categories
Biology
Evolution
Intelligent Design
Tagged
, Arginine, bacteria, bacterial cell, biosynthesis, DNA, enzymes, genes, lactose, operons, recurring design logic, regulatory systems, RNA polymerase, structural motif, transcriptional hierarchies, tryptophan}

Recurring Design Logic in Operon Regulation

_{Jonathan McLatchie
July 29, 2025

Biology, Evolution, Intelligent Design

3}

As we see in these two examples, the design logic is the same. And yet, these two systems are not evolutionarily related to one another. Read More ›

^{Type
post

Author
Ann Gauger

Date
August 25, 2022

Categories
Biology
Evolution
Intelligent Design
Tagged
, bacteria, BIO-Complexity, cells, evolution, Explore Evolution, genes, intelligent design, Kansas State Board of Education, mutations, promoters, Ralph Seelke, tryptophan, University of Minnesota}

Ralph Seelke: Remembering a Treasured Colleague

_{Ann Gauger
August 25, 2022

Biology, Evolution, Intelligent Design

4}

I first met you at a conference where you presented a paper on your experiment in long-term-evolution, or LTE. Read More ›

^{Type
post

Date
February 13, 2019

Categories
Evolution
Tagged
, __k-review, amino acids, Ann Gauger, bioengineering, cells, Darwin Devolves, enzyme, evolution, fairy tales, Heretic, histidine, Jonathan Witt, Matti Leisola, Michael Behe, mutations, Nathan Lents, neo-Darwinian evolution, Neo-Darwinism, Response to Criticism, Richard Lenski, S. Joshua Swamidass, Salmonella, Science (journal), tryptophan}

Cited to Attack Darwin Devolves, Study Devolves on Close Inspection

_{Science & Culture
February 13, 2019

Evolution

5}

Pointing out the review's many failings will be the work of multiple articles. Let’s start by zeroing in on just one segment. Read More ›

^{Type
post

Author
Jonathan Witt

Date
February 23, 2018

Categories
Evolution
Life Sciences
Tagged
, __k-review, amino acids, Ann Gauger, bacteria, bioengineering, David Klinghoffer, devolution, enzymes, evolution, Heretic: One Scientist’s Journey from Darwin to Design, ID the Future, Matti Leisola, Michael Behe, Michigan State University, microbes, polar bears, Richard Lenski, Science Daily, The Edge of Evolution, tryptophan}

Evolution a Creative Trickster? Heretic Bioengineer Says No

_{Jonathan Witt
February 23, 2018

Evolution, Life Sciences

5}

Many of the oft-cited examples of evolution in action involve devolution. Read More ›