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17 May 2019

a/What is the status of the embryo?


b/ why is the wastage of unwanted embryos morally worse than the use of abortion?


c/ Should an adult human be cloned by inserting the DNA of an adult cell into the embryo or there are another ways ?

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Collen Von
Collen VonLv2
17 May 2019

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Pleaserephrase these sentences:

ONE MAJOR OBSTACLE IN STEM CELL USE IS THE PROBLEM OF REJECTION. Ifa patient is injected with stem cells taken from a donated embryo,his or her immune system may see the cells as foreign invaders andlaunch an attack against them. Using adult stem cells or IPSCscould overcome this problem somewhat, since stem cells taken fromthe patient would not be rejected by his or her immune system. Butadult stem cells are less flexible than embryonic stem cells andare harder to manipulate in the lab. And IPSC technology is too newfor transplantation work.
Therapeutic cloning disadvantages

• Embryos created in this manner are not treated with dignity, notonly because they are a cloned copy of another person, but alsobecause they are not allowed to live beyond a few days.
• Though in order to produce stem cells in the olden days, they hadto destroy embryo. Stem cell treatment is still legal, though therealready is a high failure rate with cloning animals.
• The negatives of this procedure are that it is very limited topeople who are rich or wealthy because the expense of this productis highly priced. The people with lower income wouldn’t be asfortunate to receive this treatment.

• Some scientists have found out that the use of stem cell therapymay end up in result of rejecting the stem cells or build up into acancer or tumour.

A hot topic these days is the use of stem cells for biomedical research on potential cures and treatments for many deadly diseases. The best and most potent stem cells are removed from an early stage embryo. These embryos are in the 50-100 cell stage (or 5 days after conception) which is basically a ball of cells at this point (there are no identifiable human features or parts). These cells are removed and then treated with varying hormones, chemicals, etc to create specific types of cells that can be used in future research. These embryos are donated to research as they will not ever be used to have a baby and are simply thrown away.

Task: Do you support the use of embryonic stem cells in biomedical research? Why or why not? If so, do you believe embryos should be created for the sole use of harvesting stem cells? explain and write your sources

Question: Think about these questions, and post your thoughts on the use of cloning. Specifically, think the about the use of human cloning and discuss the potential impact on society.

Background Discussion: The scientific research terms, cloning means making exact copies of genes, a cell, or an organism. Therefore, cloning has been around for a long time. Identical twins are clones of a single zygote. When a single bacterium reproduces asexually on a petri dish, a colony of cells results, and each member of the colony is a clone of the original cell. Through biotechnology, bacteria now produce clone copies of human genes.

Through recent advances in science, it is possible to produce a clone of a mammal- and perhaps even one day, a human. The parent need not contribute sperm or egg to the process. During the so-called reproductive cloning, a nucleus (which contains the genetic material of a person) from one adult cell is placed in an enucleated egg. That egg is then allowed to develop. The developing embryo is placed in the uterus of a surrogate mother, and when birth occurs, the clone is an exact genetic copy of the original parent (of course the clone is younger). The process of cloning whole animals, and certainly humans, has not been perfected. Until it is, therapeutic cloning is more likely to become widespread.

Suppose it were possible to put the nucleus from a cell of a burn victim into an enucleated egg that is forced to become skin cells in the laboratory. These cells could be used to provide grafts of new skin that would not be rejected by the recipient. Would this be a proper use of cloning in humans?

Now, suppose parents want to produce a child free of genetic diseases. Scientists produce an embryo though in vitro fertilization, and then they clone the embryo to produce several embryos. Genetic engineering is then used to remove the genetic defect, and the defect free embryos are implanted into the uterus of a surrogate where they are allowed to grow to term. Would this be proper use of cloning in humans?

What if later scientists were able to produce children with increased intelligence or athletic abilities using the same technique? Would this be an acceptable use of cloning in humans?

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