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chromosomes

DNA
Image credit: Reimund Bertrams via Pixabay.

Hierarchical Systems in Biology — DNA Packaging

It is hard to fathom that such a highly complex, hierarchical mechanism of information storage on a microscopic scale could come about purely by chance. Read More ›
Veritasium
Image source: Veritasium on YouTube (screenshot).

Spectacular Video on Molecular Machines and Cell Replication

Back in June I published a critique of a video posted on the popular YouTube science channel Veritasium. Read More ›
newborn
Photo credit: Christian Bowen via Unsplash.

Is It a Boy or a Girl?

Parents with a new baby are almost always asked, “Is it a boy or a girl?” And the answer is almost always one or the other. Read More ›
DNA
Image credit: Reimund Bertrams via Pixabay.

Doctor’s Diary: The Wonder of Your Body’s Genetic Instructions

Imagine the New York Public Library cutting every manual in half daily, or more often, and sending every month entire halves to a library in London. Read More ›
Flannery

Alfred Russel Wallace: Shedding Light on Darwin’s Shadow

Nature’s prophet and Darwin's challenger, Wallace's effort was to restore nature to the “space-spirit hierarchy” it once knew. Read More ›
Adam and Eve, by Lucas Cranach the Younger
Adam and Eve, by Lucas Cranach the Younger
Image: Adam and Eve, by Lucas Cranach the Younger / Public domain.

Adam and Eve and “Mainstream Science”

“The category ‘mainstream science’ sounds plausibly neutral, capturing the sort of objective knowledge to which any well-educated adult should assent.” Read More ›
The_Country_of_the_Blind_by_Claude_Allin_Shepperson_3
An illustration from "The Country of the Blind," by Claude Allin Shepperson / Public domain.

Doctor’s Diary: Evolution in the Country of the Blind

Fans of H. G. Wells are probably familiar with his 1904 short story, “The Country of the Blind.” Read More ›
sperm
sperm
Photo: Sperm, by Bobjgalindo / CC BY-SA (https://creativecommons.org/licenses/by-sa/4.0).

Doctor’s Diary: Evolution’s Countless Chicken-and-Egg Conundrums

It turned out last week that scientists have been wrong for 350 years about how sperm swim. Read More ›
meiosis
Image credit: Colin Behrens, via Pixabay.

DNA May Be “Junk” at One Level But of Utmost Significance at Another

It is during the latter stages of the production of an animal oocyte that many functionalities of what some disparage as “junk DNA” take center stage. 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 ›

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