Humans should use stem cells to clone for necessary genes. Stem Cells produce the cells and tissues in humans through the process of mitosis, which results in genetically identical diploid cells, from a small number of cells called stem cells. Stem cells are capable of becoming many of the 210 different kinds of tissue in humans. There are three main sources to obtain stem cells. They are in adults cells, cord cells, and embryonic cells. To start with, stem cells can be extracted from bone marrow and the peripheral system. Bone marrow is abundant with stem cells, and many after the procedure, go home the next day. Then in the peripheral system cells are extracted without any damage to the bones. It takes a great deal more of time but the time taken helps to make sure that everything goes as planned for both the donor and then the recipient once the stem cells are transferred. Then cord cells deal with the umbilical cord in pregnancy. The umbilical cord has the most stem cells by far, and the stem cells can easily be donated to someone one you may or may not know to save their life. Who knows, if you save their life, for all you know, he or she may come back to save your life one day. By not donating stem cells, you might as well be killing yourself because the life you can save with stem cells can save yourself. The embryonic cells are extracted directly from embryo. The embryo is called a blastocyst, there are around 100 cells in them and most are stem cells. After the stem cells are donated, as far as cloning for necessary genes, some may argue that altering human genes go against God because God made us in his image, but how can you prove that? Can you prove that God wouldn’t want us to help by cloning stem cells for necessary genes? Then, the process of extracting stem cells kills the embryo, but just think of how many lives could be saved. For all you know, by not cloning for necessary genes, you could be killing the discoverer of the cure for cancer and you’ll never know. Some say that extracting stem cells from embryos might as well be murder but you might as well be murdering the people who need the cloning for the necessary genes by not helping. Last, the recipient as the receive the cloned genes, special precautions can be taken to minimize the risk in patients. And really one person may accept the genes while another might not but if they want to try to get well with the necessary genes, then who are you to decide for them that they cant?
References:
http://www.ornl.gov/sci/techresources/Human_Genome/elsi/cloning.shtml
http://www.allaboutpopularissues.org/pros-and-cons-of-stem-cell-research.htm
http://www.experiment-resources.com/stem-cell-pros-and-cons.html
About you blog I think that you did a really good job but I do have some comments. First I think that you should fix you pictures because some of them are hard to read. And secondly I think you should post a picture opf your final creature and the steps you took to creating it.