Human embryonic stem cell research uses stem cells cultured from the blastula. These cells are pluripotent, meaning that these stem cells can develop many different types of human cells. Identify the part of the blastula that they are using and explain your choice.
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Human embryonic stem cell research uses stem cells cultured from the blastula. These cells are pluripotent, meaning that these stem cells can develop many different types of human cells. Identify the part of the blastula that they are using and explain your choice.
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- There are usually ethical concerns when the topic of biotechnology is discussed. The use of Henrietta Lacks cancerous cells from her cervix is one of the first cases of what is and what is not ethical when it comes to using human tissue for research. What was the greatest ethical concern in regards to the researchers obtaining and using HeLa cells for research?The procedure for determining vitality is to place sperm in a hypotonic solution and observe the specimen under the microscope after a 5-minute incubation. This short incubation time allows for observable cellular changes without causing cell death. What type of microscope (light or electron) would you recommend using to observe sperm cells for this laboratory test and why?Answer the following question. 1. What are the benefits of specialized cells? 2. What is Stem cell?
- Statement 1: Embryonic stem cells are pluripotent which means that they are capable of differentiating into many different cell types. Statement 2: Adult stem cells are cells that generate a limited number of cell types. O Both statements are true. Both statements are false. Statement 1 is true. Statement 2 is false. O Statement 1 is false. Statement 2 is true.The essay should consider the following: A description of the key features of stem cells when compared to the features of specialised cell. Make sure you refer to the following key words: Multipotent, pluripotent, totipotent, and relate these to specific examples. You should write around 200 words. The stages of tissue engineering required to go from a stem cell to the creation of replacement tissues and organs. You should include details of: o How the cells are acquired. o How they are nurtured. How they are finally formed into the finished tissue or organ? You should write around 500 words.Review the image below. What cell division process is the image demonstrating? Provide evidence to support your claim. * In your response, you should explain what type and kind of cells are being produced? You should compare the chromosomes in the parent cell and daughter cells. Response should be at least 3 SENTENCES (I) S-phase Two daughter cells DNA replication Parent cell Your answer hoct describes a human with the chromosomes represented in the
- HeLa cells are a line of cells grown in laboratory culture that has been used extensively in research. This cell line was originally derived from malignant cervical cancer cells that were removed from a woman named Henrietta Lacks in 1951. They were grown in culture and shipped to research labs around the world where they have been used in many important experiments. Like HeLa cells, many other cell lines were originally taken from cancerous tissue. What are the advantages to using cancer cells for developing cell lines? Why not use normal tissue?I am confused about how stem cell transplants works. If you put a semi differentiated tadpole nucleus in a denucleated egg cell, it’ll develop into a fully formed tadpole, but if you put a fully differentiated tadpole nucleus, it won’t (because the genes have already been expressed in a way where the cytoplasmic determinants cannot operate to the fullest). Then how come in stem cell transplants, you use adult nucleuses that are already developed and transplant them into the denucleated egg cells?Explain why E is the correct choice. Various types of stem cells that develop from the mesoderm are involved in processes by which all cells of the protostomes and Deuterostomes obtain or regulate ions, molecules, or monomers (nutrients). Therefore, these cells will perform which of the following processes? a) Osmosis, b) active transport, c) facilitated diffusion, d) exocytosis, e) all are correct.