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The Diversity of Development: Embryos and Evolution

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How does variation in genes generate the beautiful diversity of animal body shapes that fill the world? UCSD Biologist William McGinnis explains that all animals, whether fish, fowl, or fly, share similar architectural control genes called Homeobox genes. The discovery and study of these genes has led to an understanding of how subtle changes in Homeobox genes can lead to changes in animal form during evolution. Series: "Evolution Matters" [2/2008] [Science] [Show ID: 13545]

Channel: Education
Uploaded: December 31, 1969 at 4:59 pm
Author: uctelevision

Length: 58:32
Rating: 4.56
Views: 2641

Tags: animal  biology  evolution  genes  genetics  Homeobox  science  

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Video Comments

qigong1001 (December 31, 1969 at 4:59 pm)
Feel free to argue with ideas from 120 years ago. No biologist has agreed with Haeckel's drawings or ideas for decades, lest they be uneducated! The fact is that evolutionarily linked species share common features early in EMBRYONIC development.
qigong1001 (December 31, 1969 at 4:59 pm)
And yes, the mathematics DO ADD UP, when you take into account all relevant factors, like mutation, plasmid transfer (bacteria), sexual recombination, and simply using the same old genes in new ways...see the work of Sean Carroll. All of course via natural selection.
Wolfblue88 (December 31, 1969 at 4:59 pm)
pft what a hoax. its already been proven the Haekles diagram was a gross exageration. what the video doesnt tell us is that mathmatitions say the numbers for human evolution do not add up... there are some serious flaws in this presentation.
1967VO (December 31, 1969 at 4:59 pm)
The world of human beings was always, in history, dominated by delusions... Believe things have changed at your own risk.
1967VO (December 31, 1969 at 4:59 pm)
Sloppy thinking, and worse analysis. We have arrived at an age where the uninitiated cannot judge, and ideologies determine initiation. However, something anyone can check on, it being a very simple matter, is the difference between Haeckel and von Baer.But even that was too much for the Great Scientist of this video. Draw what conclusions you may, but do not take the word of experts until you have determined the truth for yourself, and good luck.
ndjarnag (December 31, 1969 at 4:59 pm)
yeah, I am in the same boat. I try to keep an open mind...
geneseeker3 (December 31, 1969 at 4:59 pm)
I used to believe the world and all of life was created in 6 days . . . but now I am not so sure.




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