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tag speciation cell molecular biology immunology evolution

Different colored cartoon viruses entering holes in a cartoon of a human brain.
A Journey Into the Brain
Danielle Gerhard, PhD | Mar 22, 2024 | 10+ min read
With the help of directed evolution, scientists inch closer to developing viral vectors that can cross the human blood-brain barrier to deliver gene therapy.
A bat flying in a dark cave
Turning on the Bat Signal
Hannah Thomasy, PhD | Mar 15, 2024 | 10+ min read
Scientists around the world investigate how bat immune systems cope with viral attacks and how this information could be used to keep humans safe.
The Two Genomes in Every Eukaryotic Cell
Viviane Callier | Nov 1, 2019 | 10+ min read
Interactions between mitochondrial and nuclear genomes have further-reaching effects on physiological function, adaptation, and speciation than previously appreciated.
A reticulated giraffe in Samburu National Park, Kenya
Whole-Genome Data Point to Four Species of Giraffe
Ruth Williams | May 6, 2021 | 4 min read
The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.
close-up of X chromosomes
Probing “Selfish” Centromeres Unveils an Evolutionary Arms Race
Michael Lampson, PhD | Apr 3, 2023 | 10 min read
A more complete understanding of nonrandom segregation will shed light on how speciation occurs.
Immunology
The Scientist Staff | Apr 2, 1995 | 2 min read
Edited by: Neeraja D. Sankaran R.M. Chicz, R.G. Urban, J.C. Gorga, D.A.A. Vignali, W.S. Lane, J.L. Strominger, "Specificity and promiscuity among naturally processed peptides bound to HLA-Dr alleles," Journal of Experimental Medicine, 178:27-47, 1993. (Cited in 107 publications through January 1995) Comments by Roman M. Chicz,department of molecular and cellular biology, Harvard University One of the most important findings in this article, according to its authors, was the observation of pr
One Protein to Rule Them All
Shelby Bradford, PhD | Feb 28, 2024 | 10+ min read
p53 is possibly the most important protein for maintaining cellular function. Losing it is synonymous with cancer.
Mechanisms of Speciation
Leslie Pray | Nov 16, 2003 | 9 min read
Mechanisms of Speciation New examples of sympatric speciation revive some nagging questions | By Leslie Pray "A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down." --Ernst Mayr, Systematics and the Origin of Species, 19421 The duration of a cell cycle lasts anywhere from one hour to one day; Droso
A blood sample containing white and red blood cells.
Enhancing Cell Morphology-Based Analysis
The Scientist and Deepcell | Aug 3, 2023 | 3 min read
Learn how the latest AI-driven technology uses morphology to comprehensively analyze and sort cell populations.
Image of someone scratching their skin.
A Chronic Itch: Burrowing Beneath the Skin
Brian S. Kim, MD | Sep 8, 2023 | 9 min read
We have barely scratched the surface of itch science and what it indicates about our health.

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