The research points to a new theory driving evolutionary changes
Researchers at UT Southwestern Medical Center at Dallas have used canine DNA to identify a genetic mutation mechanism they believe is responsible for the rapid evolution of the physicist of many species. The results, based on data collected from hundreds of museum specimens of dogs and blood samples from volunteers live dogs, offer a new explanation for the rapid rise of new species found in the fossil record.domestic dogs. The results appear in an upcoming issue of the Proceedings of National Academy of Sciences and are available online. One explanation for a large number of different components of evolution, which goes against the central dogma that currently explains how certain aspects of evolution in progress, said Dr.
by veterinarians for dogs. The chemical
units that make up the DNA of organisms, or genetic code, is abbreviated with the letters A, C, T and G. Strings of these letters indicate the genetic instructions needed to carry out all functions of death. Most scientists agree that long periods of time, mutations in the genetic code are responsible for the direction of evolutionary change of species.a letter to the other among the billions of letters in the code - look carefully but inexorably changing bodies.
common ancestor. The scientists combined the genetic data of dog breeds and dog skulls of data on forms of computer programs developed by study co-author, Dr. John Fondón Trey, a researcher at the Eugene McDermott Center for Human Growth and Development and biochemistry at UT Southwestern. The researchers
found a correlation between the length and angle of the nose of dogs and specific regions in their genetic code that may change frequently.Example ACTACTACT. The mutations occur in these regions, if these units - the law in the example above - wrongly added or subtracted from the protein responsible for reading and copying the letters in the genetic blueprint. Such additions or deletions may lead to changes in the
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