answer. b) Stem cells. A relative of a friend of yours had a spinal cord injury after a bad car accident. The medical team has decided that this patient is a good candidate for a clinical trial using stem cell therapy. Your friend has not had a biology course since high school‚ so you are going to write for him or her a two-page discussion of stem cell information. In your discussion‚ include a description of the biology of stem cells‚ and explain how these cells are unique in their
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Stem cells are pluripotent cells present in all living organisms. These cells can differentiate into any type of cell‚ including nerves and cardiac muscle. The scientific community is very excited about the possibility of these undifferentiated cells being used to treat conditions such as spinal cord injuries‚ diabetes‚ and cancer. Despite the enormous potential for medical advancements‚ controversy surrounds the sources and methods of acquiring stem cells and the possible improper uses of the knowledge
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be formed so cell division is prevented. During telophase taxol causes the reversal of prophase events such as the chromosomes decondense‚ spindle disassembly‚ nuclear envelope reformation‚ the Golgi apparatus and E.R. reform and the nucleus also reforms. Cytokinesis effects are that the cell still divides for animal cells a cleavage furrow made of actin and myosin II constricts the middle of the cell and in plants the phragmoplast forms at the equator of the spindles where a new cell wall forms
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Virtual Lab: The Cell Cycle and Cancer Worksheet 1. In which phase of mitosis do each of the following occur: a. Centromeres split and chromosomes move toward opposite sides of the cell anaphase b. Chromatin coils to form visible chromosomes prophase c. The nuclear membrane disappears prophase d. Sister chromatids line up in the center of the cell metaphase 2. In which phases of mitosis are sister chromatids visible‚ and attached to each other at the centromere? Prophase
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There are quite a few variations between normal and tumor cell division. Normal cell division can be broken into four phases: G1‚ S‚ G2‚ and M. During the G1 phase‚ RNAs are produced‚ proteins are synthesized and through the P53 gene (also known as the “Guardian of the Genome”)‚ cells are checked for damage and those that are found are forced to go through apoptosis where the cells are forced to “commit suicide” to prevent replication. Through the S phase‚ the DNA is duplicated and in the G2 phase
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The Impacts of the Popularization and Transnational Influence of Stem Cell on Health Care and Federal Funding Issues in the Philippines As time goes by‚ there seems to be a gradual influence of modern sensibility on the way humans perceive the concept of health. In fact‚ nowadays‚ there seems to be a blurring of the line between health and wellness. Because of this‚ it is inevitable that in a modern society‚ people are now being more conscious with their body and their health is now being a worrisome
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Nucleus- The nucleus is the control center of the cell. This is where DNA is contained. This is like the town hall or the mayor’s office because it is the control center of a town. The nucleus uses DNA like a city uses blueprints to direct the production of protein. Nucleolus- The nucleolus is where ribosome is made and is rich in RNA content. It is located inside the nucleus. A mayor is like this because the mayor makes everything in the town happen. He also works from the town hall‚ or works
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FUEL CELL CARS Fuel Cell cars are a major part of the fleet of Zero-Emission Vehicles. The fuel cells are fueled with pure hydrogen and hence they are considered to be zero emission vehicles. Fuel cells have been used on spacecraft for many years to power electric equipment. These are fueled with liquid hydrogen from the spacecraft ’s rocket fuel tanks. Basic Mechanics Fuel cell vehicles turn hydrogen fuel and oxygen into electricity. The electricity then powers an electric motor‚ just like
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Dangers of Cell Phones I am sure that most of you own cell phones and that you can’t leave your home without it. And that all of you think of cell phones as one of the most useful devices of our time. Despite all that‚ have you ever considered dangers of using cell phones or thought about the harmful effects of the microwave radiations? (Pause) Just 10 years ago‚ cordless telephones were something used only by big businesses and privileged persons‚ but Nowadays; it seems that every kid
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Cell Size: Is Bigger Better? Problem: Why are cells small? Objective: To see the relationship between cell size and diffusion of materials. Hypothesis: If we cut three different sizes of cells‚ then the smallest one will survive the longest due to its sufficient permeable membrane. Cube | Total Volume (cm^3) | Surface Area (cm^2) | Index SA/VOL | 3 | 27 | 54 | .5 | 2 | 8 | 24 | .33 | 1 | 1 | 6 | .16 | Index of Cubes Cube Index SA/VOL Surface Area to Volume Cube | Total
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