Q1. The diagram shows one way that stem cells can be produced from human embryos. Sue Medaris/University of Wisconsin-Madison (a) Stem cells can be used to treat a condition such as paralysis. Explain why. stem cells can differntiate to become any type of body cell so they could be used to replace the damaged nerve cells‚ (2) (b) During pregnancy‚ an umbilical cord and a placenta join the embryo to the mother. At birth the umbilical cord is cut. Stem cells can be obtained from
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taking a life away to proceed in the research that I do not support. I do not support embryonic stem cell research and the study shouldn’t be continued as it relates to embryos. The use of embryonic stem cells
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demonstrated that stem cells obtained from a mouse could be made to produce a variety of tissues. The research used techniques which are not new. These techniques have already been employed in other animal studies. Only their employment in human embryos has yet to be attempted. The cloning of cells is presently an art with outcomes being very unpredictable and frequently failing. Researchers are concerned whether cloned cells obtained from a mature individual will behave properly: The process of
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contents. Now that the sperm has been connected with the egg it begins its journey. 50% of these embryos fail to develop. The zona is ordered to lock out all other sperm from entering the egg. The exchange of chromosomes‚ 23 from the mother and 23 from the father‚ begins and the mitosis process is set in full speed. All this time the egg is floating down the Fallopian tube. Five days after fertilization‚ the embryo reaches the uterus while still being trapped in the hard shell of the zona. The beginning
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particular caste in the World State. -The five castes are Alpha‚ Beta‚ Gamma‚ Delta‚ and Epsilon. -Gamma‚ Delta‚ and Epsilon undergo the Bokanovsky Process. (Shocking an egg so that it forms up to 96 identical embryos‚ developing 96 identical human beings). - Alpha & Beta embryos never undergo the dividing process. -Director explains the Bokanovsky Process brings social stability because the clones are predestined to perform identical tasks at identical machines. -Cloning process is one
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certain symptoms. A pregnancy test can be detected. The hCG hormone plays a role in this. 6) Describe the physical development that occurs in relation to the ectoderm‚ mesoderm and endoderm. 7) What happens 18 days after conception? The embryo commences growth inside the uterus. It is divided into three layers that will later form organs and tissues. The neural tube develops in the top layer. Some of these cells will further specialise‚ sprouting outward to cover the body with skin‚ hair
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IVF‚ induces the ovulation of a woman‚ taking the eggs and joining them with the man’s sperm in a petri dish. After a couple of days the resulting of an embryo occurs‚ which leads to implantation into the woman’s uterus. Zygote intrafallopian tube transfer (ZIFT) and gamete intrafallopian tube (GIFT) are similar to IVF‚ except the sperm and eggs are placed straight into the fallopian tubes. Other technologies are also being used to reproduce children scientifically‚ for instance the freezing of eggs
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women who were born barren/ infertile (unable to bear offspring) or women who simply cannot reproduce‚ so that they can have the ability that every woman should have; children. This advancement in technology‚ allows couples to choose or screen the embryos wanted for implantation. This is important for couples that are at risk of having a child with a hereditary disease. The way IVF works is that the eggs are surgically removed using a needle from the female. Then the removed egg is then fertilized
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are dehumanizing babies because babies are not aware of what is going on and they are still growing inside the womb. Even if the mother does not want the baby‚ there are many other options they could choose from: they could put the child up for adoption‚ have their parents or a loved one take care of the child‚ or they may even end up wanting the child after he or she is born. Instead of ending a child’s life before they even get to start it‚ the mothers should at least give them the chance to
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is no growth in the embryo’s size the divisions create smaller cells. Five days since fertilization‚ the blastocyst reaches the uterus. The embryo hatches from its protein shell and performs implantation onto the endometrial lining of the mother’s uterus. At week four‚ since conception‚ the gestation is just three weeks old and is now a one week old embryo. Around this time the embryo’s head is beginning to form followed by the nose‚ eyes‚ and mouth. The baby’s cardiovascular system is also beginning
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