To Resurrect or Leave in the Past
Humans are curious by nature; they often ask themselves what if I would have lived in pre-historic times or in some cases during a different period of time. There is s specific reason as to why they are living in the specific period they were born. Could it be the theory of evolution or a product of religious faith? No one can be for certain what the correct answer is. One thing is for certain though; scientists have now discovered a process called cloning in which they resurrect extinct animals and even humans. Scientists have raised quit a controversy with the talk of cloning a wooly mammoth. In the article, Recipe for a Resurrection: bringing extinct species back to life is no longer considered science fiction. But is it a good idea? Scientists have discovered how to clone animals such as mice after they have been frozen for sixteen years. Much of the basic information was established weeks later when a group from Pennsylvania State University published 70 percent of the mammoth gene. As a result of their research, scientists now believe they can effectively clone a wooly mammoth. Even though scientists believe they can effectively clone a wooly mammoth they are struggling with the ethical dilemma this poses. The next step of the process would be to recover the DNA sequence to reproduce the wooly mammoth. According to Mueller (2009), scientists would have to recover the complete DNA sequence and show this data in an organism. The remaining genome would have to be recovered and resequenced. The DNA would then need to be organized in the chromosomes. Since, the mammoths DNA is too fragmented to use, Mueller (2009), suggests modifying the chromosomes of an African and Asian elephant, which are the closest living relative to a wooly mammoth.
By default the elephants genetic make-up would be re-wrote into that of a wooly mammoth. Another possibility the scientist have, is to synthesize the entire genome if researchers can determine how the DNA was organized in the chromosomes. If, scientists are successful creating the chromosomes of the wooly mammoth the next step would be to create an artificial nucleus cell. Next, scientists could follow the example of Dolly the sheep, which was cloned in 1996; scientists would then transfer an embryo into an elephant’s womb for gestation. Although this sounds simple enough there are still some grey areas with this research. Scientists are still struggling with how to build a nucleus as well as how well the elephant would carry a wooly mammoth through the gestation period. These steps pose many questions for scientists therefore; some scientists have begun with smaller challenges. Scientists from Advanced Cell technologies and the San Diego Zoo have successfully cloned across the species barrier. “Frozen
the information in our DNA/genes used by our bodies? DNA is the genetic code for your body. DNA tells what color your hair is going to be or what skin pigment you will have-- how much melanin your skin will produce. It even tells what kind of nose you will have and what your lips will be like. It makes you who you are. Chromosomes, strands of DNA packed together, also tell if you will be Autistic or have some genetic disease. Some diseases are caused by the mutation of DNA, but not all. What happens…
DNA Extraction: Genomic DNA is found in the nucleus of eukaryotic cells. Mitochondria contain singlestranded DNA from our mother. Reagents Used in Lab: ● Lysis Buffer: Disolves the cells’ nuclear membranes and the phospholipid bilayer, allowing for the DNA to be released ● Protease: Breaks down cellular proteins. We used protease to DESTROY DNAses and the histones. ● Cold Alcohol: to precipitate the DNA out of the solution. The DNA is less soluble in alcohol, so it WILL become visible…
scientific personnel needed to tackle the job. Processing the current backlog of forensic DNA evidence and expanding local, state, and national databases of DNA evidence obtained from crime scenes, as well as from convicted offenders, will require a massive effort. THE WORK is quite literally piling up. In STARTING POINT Myriad Genetics lab technician Drew Carter opens evidence bags containing individual DNA samples collected by New York State Police from the site of the World Trade Center disaster…
Forensic Biologist Evan. FORENSIC BIOLOGIST Abstract In the world of forensic science, or better known as the application of science in the assistance of a crime, a booming new career known as the forensic biologist (also known as a DNA analyst) is taking shape. They are one of the most important members to a forensic science team with only needing a minimum of a bachelor’s of science degree. With their expertise in using the biological samples of a crime scene they can support the claims of…
community. C) population. D) ecosystem. E) family. 5) Which of the following is a false statement regarding DNA? A) Each chromosome has one very long DNA molecule with hundreds of thousands of genes. B) Every cell is enclosed by a membrane. C) Every cell uses DNA as its genetic information. D) All forms of life are composed of cells that have a membrane-enclosed nucleus. E) DNA is the unit of inheritance that is transmitted from parent to offspring. 6) In terms of the hierarchical organization…
Sadie Wood Environmental Science Human Genome 24 September 2014 The Human Genome The Human Genome was a worldwide search with goals of finding out the answers to some important questions, for example: How do we study the DNA of individuals to help them discover their ethnic ancestry? How do we map out the sequences of DNA? What does it mean? For people with diseases involving genetic mechanisms, what can we learn? Is it possible for scientist to fix genetic mutations or prevent such diseases…
DNA profiling is a method of identifying an individual by unique characteristics of their DNA. A specific DNA pattern, called a profile, is obtained from an individual or a sample of tissue. This allows the comparison of the base sequence of two or more DNA samples to determine whether they are related. DNA profiling has many uses, in prevention of economic fraud, dietetic work, and classifying species, identifying bodies, forensic science, screening for disease, and investigating paternity.…
the unknown author offers an explanation of the new discovery that people can have multiple DNA mutations in several parts of their body, while still having their original DNA. This causes several different genotypes in a person’s body. Also, the same genetic mutation that one person can have, can happen to an unrelated person. This indicates a direct contradiction to our current belief that everyone’s DNA is unique to themselves. Somatic mutations, which are non-inheritable from parents and…
Genetics, Evolution, Chemistry, Electricity, Motion and The Electromagnetic Spectrum (50 marks) Section III: Short answer – Science skills (10 Marks) Textbook and practise quizzes for science: http://wps.pearsoned.com.au/sf4/ Science REVISION OUTLINE In order to undertake this task you will need to know: • The Watson – Crick model of DNA (DNA structure and function) • The theory of evolution and natural selection • Thorough knowledge of the periodic table •the Atomic theory…