Role of Mutated Gene in the Evolution of Large Brained, Small-Jawed Hum

Role of Mutated Gene in the Evolution of Large Brained, Small-Jawed homoThe debate with-in the anthropology field has been heated over the evolution of the human and the events that name lead us to where we are now. One of the major questions that is debated is how did we, humans-large brained and small jawed, spring up from primates-large jawed and small brained. Interestingly enough, this debate is now being directed from international the field by biologists and plastic surgeons. On march 25, 2004, Doctors Stedman (and other(a)s) published their findings in Nature (VOL 428) under the title Myosin constituent diversity correlates with anatomical changes in the human lineage. Their findings point to the gene myosin and its mutated form MYH16 and that the mutation that toke place rough 2.4 million years ago as a major feeling in the development of a larger brain that we now as humans confine. In this paper I aim to outline what they have discovered and point out some o f the controversy surrounding the findings. It is non my goal to understand how the gene functions, but to rely on current judges conclusions that the gene is mutated but I will explain what this advise say about the formation of bone structure. What the researchers found centers on the MYH16 mutation and the original myosin gene, a protein that builds strong muscular jaws. Myosin is a protein that works with other proteins to contract muscles, more importantly jaw muscles. The mutation of myosin, MYH16, causes a weaker bite. In their experiments they looked at macaque monkey and human genes to determine how this mutation worked. They found that the gene myosin only worked in the muscles of the head used for chewing and biting. The difference mingled with the two subjects was... ...ary SourceStedman, Hansell, et. al. Myosin Gene regeneration Correlates with Anatomical Changes in the human being Lineage. Nature, Vol 428, March 28, 2004. The Nature Publishing Group. w ww.nature.com/natureSecondary SourcesAssociated Press. Gene Mutation Said Linked to Evolution. http//abcnews.go.com/wire/Living/ap20040324_1105.htmlHopkin, Michael. Jaw-Dropping Theory of Human Evolution. http//www.nature.com/nonspecific urethritis/040322/040322-9.htmlKreeger, Karen. Myosin Mutant Points to Human Origins. http//www.eurekalert.org/pub_releases/2004-03/uopm-mmp032204.phpAnanthaswamy, Anil. Early military personnel Swapped Bite for Brain. http//www.newscientist.com/news/news.jsp?id=ns99994817Reuters. Scientists Humans traded jaw strength for big brains. http//edition.cnn.com/2004/TECH/science/03/24/science.brains.reut/index.html