Blastocyst

cochlea. In order to better understand the function of oncomodulin, this study depleted hair cells of oncomodulin to see how cochlear function was affected. • Methods: In this study, the genes for oncomodulin were cloned and after sequencing, two blastocysts were injected with two clones. Crossing the two oncomodulin heterozygotes generated an oncomodulin homozygote flox, and this flox was crossed with a mouse under the control of an actin promoter in order to create a mouse where oncomodulin was to

After sperm enters into the egg, it then completes meiosis II, the ovum and sperm swell causing female and male pronuclei. The pronuclei then finish fertilization and become a zygote. The zygote then undergoes many stages of division and becomes a blastocyst and implants in the endometrium of the uterus. This all happens within six to eight days. Some of the hormonal changes that might occur after becoming pregnant are large amounts of oxytocin being produced, which is inhibited until labor. Oxytocin

The Challenge in Society Today Cloning has been researched and talked about for many years, but the main reason that it is such a slow-moving process when considering the amount of research that has yet to be completed is because there is a huge debate about whether cloning is an ethical thing or not. Most people were not concerned about cloning being an issue until 1996 when Dolly the sheep was successfully cloned and people began to realize what scientists could do with new technological and scientific

The world is too much, the title of a Wordsworth poem concerning the consequences of technology, these are words that dwell in infamy. Being cautious in regards to the detrimental potential of technology does not make one a luddite, it merely labels one as rational human, however not realizing the capacity technology has for good does, specifically the capacity for human genetic modification to improve our species. Broadly, the extent to which genetic modification of humans should be permissible

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

conducted in a clinical sense, there have been studies conducted in mouse embryonic stem (ES) cells. The clone of ES cells with the correct targeting event has been analysed and selected, they are then transferred into the mouse via the process of blastocyst injection. The mouse is then put under observation, allowing the study of gene function in the bodies of living, intact animals. Further research has shown that other animals are also capable of undergoing targeted mutations into the germ line.

such as amniotic fluid, which can be retrieved during a pregnancy, placenta and cord tissue during the development of embryos, umbilical cord blood that is saved after the umbilical cord is cut, teeth, embryos that are willingly donated during the blastocyst stage (4-5 days after fertilization), and adult bone marrow. Each of these stem cell types, wherever their source might be, holds the priceless competence to work as a huge medical advantage,

One of the most influential philanthropists of all time, Mother Teresa, once explained that to her the greatest destructor of peace was “abortion, because it is a war against the child- a direct killing of the innocent child- murdered by the mother herself.” In the United States, four in ten of unintended pregnancies result in abortion culminating in approximately 1.21 million abortions each year.1 Abortion, defined as the removal of a fertilized egg from the uterus, has been a controversial issue

video clip was memorable for me because it was reminiscent of the birth of my two daughters. It was an emotional clip to watch and what made it so fascinating was the fact that the whole process was tracked with vivid visuals from the gametes to the blastocyst to the zygote to the fetus to finally the new born baby. I was amazed at the images of the millions of sperm that was produced and the various obstacles they had to go through just to get to the ovum. The first obstacle was in the sheer number of

Did you know that there are over 123,000 people waiting for an organ transplant. There are not many ways to solve that other than having more people donate organs. The big problem is that not very many people are donating organs, so there is a big shortage of organs. One way to solve this problem is to let scientists use stem cells from aborted babies. This can help in many ways including organ shortage. I believe that scientists should be able to use stem cells from aborted babies to help with stem