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Old 11-14-2012, 04:21 PM   #1
bimmerfan08
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Can We Make Jurassic Park Yet?

Find an ancient mosquito trapped in amber. Draw dinosaur blood from its belly. Extract DNA from that blood and insert it into a crocodile embryo. Hatch the egg. Feed the dino. Start an amusement park. Don't open the gates.

That series of steps might have sounded pretty fanciful back in 1993 when the blockbuster film "Jurassic Park" (based on the book by Michael Crichton) hit theaters. Today though, in the world of genome sequencing, transgenic (hybrid) animals, and bacteria built from scratch in the lab, the resurrection of extinct species sounds a little more feasible. Is it?

Turns out scientists might very well create dinosaurs or dinosaur-like creatures in the not-so-distant future. They won't do it in the way Crichton envisioned, though.

Unfortunately, DNA molecules, the genetic instructions for creating life, break down over time. Sixty-five million years have passed since dinosaurs last flew, swam and walked the Earth, and DNA seldom stays intact longer than 500,000 years. According to Jack Horner, a renowned dinosaur paleontologist at Montana State University and the technical adviser for all the Jurassic Park films, we've never actually found dino DNA. He and his colleagues discovered soft tissue from a Tyrannosaurus rex in 2005, but even that contained no usable material: "The soft tissue is apparently composed of biomolecules other than DNA," Horner told Life's Little Mysteries.

Even if we do someday find ancient dinosaur DNA, it will be in shambles snippets of code just a few base pairs long. We'll have no idea how to stitch the snippets together. Thus, sequencing the dinosaur genome from fossilized tissues or blood may never be a viable route to their revival.

Jurassic chicken

But geneticists are trailblazing an alternative path to Jurassic Park. In the past few years, several groups working independently have begun to awaken the dormant dinosaur DNA present in one of the extinct creatures' descendents: chickens, whose genome is fully sequenced. Led by Horner, the scientists hope to eventually grow a chicken that has teeth, scales, a tail, and forelimbs. In a word, they want to build a "dinochicken," and it'll be pretty darn close to the real thing. [The Surprising Connection Between T. Rex and Turkeys ]

First, in 2005, developmental biologists John Fallon and Matt Harris at the University of Wisconsin were experimenting with mutant chicken embryos when they noticed strange protuberances emerging from the chicken fetus's jaws. The bumps turned out to be saber-shaped teeth identical to those of embryonic alligators.

The toothy chicken embryos were mutants they possessed a recessive gene that kills fetuses before they're born. As a side effect (unrelated to how it killed them), that gene was switching on another one that has lain dormant in chickens' evolutionary line for at least 70 million years: an ancient dinosaur tooth gene. Fallon and Harris created a virus that behaved similarly to the lethal recessive gene present in the mutant chickens, but without being deadly. When they inserted the virus into normal chicken embryos, they grew teeth.

Later, a paleontologist named Hans Larsson at McGill University found that chicken embryos' start out with tails. At a certain point in a chick's development, a genetic switch flips and the tail goes away. Using growth hormones to try to override the stoppage, Larsson and his colleagues are attempting to flip the switch back (though they haven't done so yet).

In the same vein, Horner believes chicken embryos can eventually be genetically manipulated to develop forearms instead of wings. "The absence of a tail, the difference between wings and grasping forearms, and the absence of teeth are all subtle evolutionary changes on a basic dinosaur plan," he wrote in a book he co-authored with James Gorman called "How to Build a Dinosaur" (Dutton 2009).

So how long will it be before the scientists create a dinochicken? "It may be a few years as it mostly depends on funding," Horner said. In a world where cancer remains uncured, not everyone thinks dinosaur revivalism deserves a share of the meager monetary offerings available for scientific research. Others perhaps, someday, a wealthy private investor think it would be cool.

http://www.lifeslittlemysteries.com/...ssic-park.html
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Old 11-14-2012, 04:26 PM   #2
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real dino dna!!!!
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Old 11-14-2012, 04:32 PM   #3
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real dino dna!!!!
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Old 11-14-2012, 04:32 PM   #4
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"What species is this?"

"Uh, it's a velociraptor."

"You bred raptors?"

"mm hmm"


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Old 11-14-2012, 04:35 PM   #5
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real dino dna!!!!
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Old 11-14-2012, 04:48 PM   #6
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why don't you make a 2jz
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Old 11-14-2012, 04:51 PM   #7
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Doesn't matter, Mayan physicist said the world would end soon anyway.

Kidding, this sh!t is awesome. DNA and genetic manipulation are some of the most mind blowing things out there.
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Old 11-14-2012, 04:54 PM   #8
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Mutated lab-grown dino-chickens running amok, pecking people to death. I hope they fvck it up and accidentally create a tyrannosaurus chicken that kills everyone in that lab. This sounds like the most awesome B-movie ever.
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Old 11-14-2012, 05:16 PM   #9
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Old 11-14-2012, 05:33 PM   #10
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so what came first the dynochicken or the egg?
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Old 11-14-2012, 05:44 PM   #11
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Mutated lab-grown dino-chickens running amok, pecking people to death. I hope they fvck it up and accidentally create a tyrannosaurus chicken that kills everyone in that lab. This sounds like the most awesome B-movie ever.
so.. will it be the dinochickens or zombies first?
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Old 11-14-2012, 05:45 PM   #12
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But again, how do you know they're all female? Does someone go into the park and, uh ... pull up the dinosaurs' skirts?

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Old 11-14-2012, 05:47 PM   #13
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could dinos actually breath our oxygen, and maintain survival?
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Old 11-14-2012, 05:48 PM   #14
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so what came first the dynochicken or the egg?
I came first


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Old 11-14-2012, 07:39 PM   #15
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so.. will it be the dinochickens or zombies first?
Well, I'm HOPING for zombies, but this dinochicken thing seems more attainable. I'll take what I can get. Either way, it'll be great entertainment!
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