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GENETICS: pull pile Syndrome A Natural experience 1 Research Requirement Presented to Dr. Sharon R. Lao University of Mindanao Matina, Davao City In Partial Fulfillment of the Requirement in NS 1 first-class honours degree Semester, 2nd Term S.Y. 2012-2013 Stephen S. Bermudez October 2012 follow out Syndrome Why must a child suffer from down syndrome? Annotated Bibliography Authors From Book Thomas D. Pollard(2004). cadre biota: Elsivier Science(USA), Inc. Meiotic errors involving a few of the autosomes can modernize fetuses that blend in to birth. Individuals trisomic for chromosome 21( a ondition commonly known as DOWN SYNDROME) devote genial retardation and characteristic phenotypical features. Campbell(2002). biota: Pearson Eduation, In. San Francisco, CA Down Syndrome, affects approximately one come forward of every 700 children born in the United States. Down syndrome is commonly the result of an extra chromosome 21, so that each bod y cellular telephone has a total of 47 chromosome. Ana Mader(2010). Essentials of Biology: M Graw Hill, NY Down syndrome occurs when the egg or the sperm has an extra hromosome 21 imputable to nondisjunction in either myosis I or miosis ll. Characteristic include a tolerant rounded heart and narrow, slanting eyelids. Mental disabilities be often present, but numerous vary greatly.

Sylvia S. Mader(2006). Human Biology: Mc Graw Hill, Boston The roughly common autosomal trisomy seen among humans is down syndrome, also called trisomy 21. This syndrome is slowly recognized by these characteristics: short heig ht; an eyelid great deal; a flat face; stub! by fingers, a wide gap between the first and moment toes; a outsize fissured tongue; a round stop; a treat crease, the so-called simian line; and unfortunately, mental retardation, which can sometimes be severe. Gerald Karp(2012). Cell Biology: washstand Wiley& Sons, Inc. Eventhough chromosome 21 is the smallest human chromosome with fewer than 400 genes, the carriage of an extra retroflex of this genetic material leads to Down Syndrome....If you exigency to get a full essay, order it on our website: BestEssayCheap.com

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