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cell division

Human_Cell 2
Photo: A human cell, by Marc Vidal, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

The Cell Division Challenge to Eukaryogenesis — And to Evolution

The disparity between the eukaryotic and prokaryotic cell division is very surprising given the standard evolutionary view of gradual, incremental evolution. Read More ›
Cell_division.tif
Image: Cell division, via Wikimedia Commons.

The Eukaryotic Cell Cycle: An Irreducibly Complex System

Any system that achieves a complex higher-level objective by means of various well-matched interacting components requires foresight to come about. Read More ›
Mitosis_cycle
Photo credit: Animalculist, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

The Elegant Spindle Assembly Checkpoint

Without this exquisitely engineered system, the cell risks distributing an uneven number of chromosomes to the daughter cells. Read More ›
Stromatolithe - MNHT
Photo: Stromatolithe fossil, dated to about 3.4 Ga, by Muséum de Toulouse, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

Study Finds Life’s Origin “Required a Surprisingly Short Interval of Geologic Time”

It’s certainly not impossible that life was already present on Earth at 4.2 Ga. And if it were true it would have intriguing implications. Read More ›
Cell_division.tif
Photo: Cell division, via Wikimedia Commons.

Springs, Glues, and Rocket Launchers in Cell Division

The molecules of life do much more than convey information. They combine and impose physical forces on each other in intricate, functional ways. Read More ›
kendall-ruth-8CTz62aHidw-unsplash
Photo credit: Kendall Ruth on Unsplash.

Herding Chromosomes in the Mitosis Corral

The molecules of life do much more than convey information. They combine and impose physical forces on each other in intricate, functional ways. Read More ›
Lung_cells_infection_by_Pseudomonas_aeruginosa.tif
Photo credit: Benoit-Joseph Laventie, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia Commons.

Irreducible Complexity in Bacterial Cell Division

Ready to dip a toe in the ocean of biological ingenuity? Dr. Jonathan McLatchie is back. Read More ›
Mitosis-AscarisEggcs400x2
Photo credit: John Alan Elson, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

Astounding: The Role of Motor Proteins in Cell Division

A crucial aspect of mitosis is the movement of chromosomes — initially the alignment of as paired sister chromatids during prometaphase and metaphase. Read More ›
CELS
Image credit: Brian Gage.

Paper Digest: Standard Engineering Principles as a Predictive Framework for Biology

Human designing and building have resulted in lists of standard engineering principles which must be followed to produce efficient, robust systems. Read More ›
Lee Cronin
Photo: Lee Cronin, by Alfienoakes, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

On Origin of Life, Stephen Meyer and James Tour Debunk Researcher Lee Cronin’s Claims

Have prebiotic chemists made any progress on the sequence specificity problem? None whatsoever, says Dr. Tour. Read More ›

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