Weighing the Controversy and Good of Stem Cells - 1182 Words

Stem cells can become many different cell types. There are three main types; totipotent, pluripotent, and multipotent. They have already have been successful in treating some diseases and have the potential to cure many other diseases. Stem cells have also been very useful in drug testing. However they have caused a lot of controversy, but some technology has helped settle this controversy. Cells must be specialized, differentiated and unmistakable so they can create the human body. The cells need to create red and white blood cells, neurons, bone, hair, muscle, skin, teeth and specialized organs. Within almost every cell in the body contains a complete set of genes to assemble and maintain a human. To become more specialized the cell will turn off unneeded genes. Stem cells are cells that have the potential to become almost any cell in the human body, during the early developments of life. Stem cells have the possibility to generate all of tissues within a human as well. Each stem cell can either stay a stem cell or become a more specialized cell. The stem cells that are unspecialized are capable of renewing themselves or possibly being induced to become organ specific cells or tissue cells with special functions. Most stem cells have a constant supply to replace other cells that are injured, diseased, or even aged. A totipotent cell occurs when an egg and a sperm unite to create a one celled fertilized egg called a zygote. This cell is undifferentiated because they areShow MoreRelated Embryonic Wars Essay1634 Words   |  7 Pagesconsequentialism. This paper will also probe into the relatively brief history of the debate while gauging the particular stumbling blocks of disagreement which bioethicists have arrived at. The topical aspects of therapeutic cloning will be closely studied by weighing the pros and cons and gaining a greater understanding of the present scenario. 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For the 2012 edition: This book is dedicated to my wife Hellan whose good advice has improved the book in many ways. vi Table of Contents Preface.........................................................................................................................................................iii CopyrightRead MoreAn Evaluation of an on-Farm Food Safety Program for Ontario Greenhouse Vegetable Producers; a Global Blueprint for Fruit and Vegetable Producers51659 Words   |  207 PagesChapman University of Guelph, 2005 Advisor: Professor Douglas A. Powell Fresh fruits and vegetables have been increasingly linked to cases of foodborne illness. Many produce farmers have implemented on-farm food safety strategies, employing good agricultural practices focusing on water, handling and sanitation to reduce risk. An illustrative case study to examine implementation trends was developed through the examination of current on-farm food safety issues and programs, with specific focus