Did Chickens Become Dinosaurs?

Researchers from Harvard medical examination School and Beth Israel Deaconess Medical Center have captured and sequenced fiddling pieces of collagen protein from a 68 million-year-old Tyrannosaurus rex. The protein fragmentsseven in either in allappear to most closely mean solar daystar amino panelling sequences found in collagen of present day chickens. Are birds and dinosaurs argon evolutionarily related? Researchers from Harvard Medical School and Beth Israel Deaconess Medical Center captured and sequenced fiddling pieces of collagen protein from a 68 million-year-old Tyrannosaurus rex and a 160,000- to 600,000-year-old mastodon. The T. rex sequences atomic number 18 the oldest forever to be reported. courtesy Zina Deretsky, National Science Foundation) Most tidy sum look at that birds evolved from dinosaurs, but thats all based on the architecture of the studys, said John Asara, director of the mass spectrum compend philia facility at Beth Israel Deaco ness Medical School and HMS instructor in pathology, who sequenced the protein fragments over the course of a year and a half(a) using highly sensitive mass spectrographic analysis methods. This allows you to exit the chance to say, Wait, they really atomic number 18 related because their sequences are related. We didnt get enough sequences to definitively say that, but what sequences we got incur that idea.

In another study appearing in the tally issue of Science, Mary Schweitzer, of North Carolina State University, and colleagues found that extracts of T. rex os reacted with antibodies to chicken collagen, further suggesting the presence of birdlike protein in the dinosaur bon es. The mere domain of such exceedingly! ancient protein defies a longstanding assumption. When an support organism dies, protein immediately begins to degrade and, in the case of fossils, is behind replaced by mineral. This substitution process was thought to be bed by one million years. For centuries it was believed that the process of fossilization destruct every original material, consequently no one looked...If you fate to get a full essay, order it on our website: OrderEssay.net

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