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chromatids

C-basalProximalTriplete-3
Image credit: Garrett A Greenan, Bettina Keszthelyi, Ronald D Vale, David A Agard,, CC BY 4.0 <https://creativecommons.org/licenses/by/4.0>, via Wikimedia Commons.

Centrioles Revealed as Part of a Large Signaling Network 

What molecular structure forms cartwheels, is architecturally beautiful, and is vital for cell division? Read More ›
Mitosiscycle
Photo credit: Animalculist, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

How Do Mitotic Errors Affect Cell Proliferation?

This review furthers the argument that I have developed elsewhere that the eukaryotic cell division cycle is elegantly engineered and irreducibly complex. Read More ›
African_clawed_frogs;_Xenopus_laevis
Photo: Clawed frogs, by Muffet, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons.

Irreducible Complexity Nested Within Irreducible Complexity: The Case of Chromosome Condensation

It is highly implausible that such a wonder of engineering arose by means of an unguided evolutionary process. 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 ›
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 ›
chromosomes
common descent
Photo: Midge chromosomes, by Dr. Josef Reischig [CC BY-SA 3.0 ], via Wikimedia Commons.

DNA Packing: One of the Supreme Wonders of Nature

The cell packs two meters of DNA into a 10-micron nucleus. How? The machinery is as intelligently designed as the genome itself. Read More ›
Pig_oocyte_dapi_2
Photo: Pig oocyte, by Jakub Friedl / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0).

Chromosome Dynamics Has Egg-centric Features

In the words of Robert Rosen we have to “drastically reconsider what is meant by “genetic information.’” Read More ›
a-queen-bee-with-bees-on-a-honeycomb-stockpack-adobe-stock-445241863-stockpack-adobestock
A queen bee with bees on a honeycomb.
Image Credit: Helga - Adobe Stock

Sex, the Queen of Problems in Evolutionary Biology

The origin and subsequent maintenance of sex and recombination isn't easily explained by Darwinian evolution. Why is sex a success, despite all its disadvantages? Read More ›

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