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Introduction to the human cloning
Cloning
Introduction to the human cloning
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Recreating prehistoric life is at the fore-front of interest in the scientific community. Large strides have been made in uncovering the genome sequences of Neanderthal. Within a few years, scientists hope to unravel our relatives’ entire genetic code. With Neanderthal cloning staring us in the face, a more seductive idea has emerged with immense support from the media.
The idea of cloning dinosaurs and other prehistoric life became popularized by the 1992 film Jurassic Park (based on Michael Crichton’s 1990 novel). Though it may have sparked new interest into the field of paleontology, it did so with deceiving inaccuracies. However, the technical fallacies of the actual dinosaurs are somewhat forgivable as it added to the film’s dramatic appeal. Velociraptor, as depicted in the film, was about the size of a grown man. In reality, velociraptor came to about the kneecap. Furthermore, velociraptor would more likely have been covered in feathers rather than the lizard-like skin portrayed in the movie. One scene shows velociraptor fogging the window of a door. This is an endothermic or warm blooded trait as it implies the dromaeosaurid’s body temperature is above the temperature of his environment. There is also no evidence of dilophosaurus bearing a neck frill, and brachiosaurus did not have the ability to chew his food in a circular motion (iguanodon was the first dinosaur to develop this technique by acquiring back molars to allow for equine or bovine-like chewing). Fortunately, tyrannosaurus remained very close to his biological authenticity, with the only paleobiological errors stemming from a lack in computer animation such as rudimentary ball and joint programs. However, the erroneous nature of the deoxyribonucle...
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... in our criticism. Crichton and Spielberg made a greater effort to get things right than anyone before them. Perhaps, they did misspell “stegosaurus” in the Embryonic Storage Room, but who is paying attention? Since the release of Jurassic Park, a new interest has emerged into the field of paleontology. Without this new interest, fascinating breakthroughs such as evo devo might have remained a castle in the Mesozoic sky.
Works Cited
Crichton, Michael. Jurassic Park. New York: Random House, 1990.
Horner, Jack, and James Gorman. How to Build a Dinosaur. London: Penguin Group, 2009.
Dr. Palmer, Douglas. The Illustrated Encyclopedia of the Prehistoric World. New Jersey:
Chartwell Books, Inc., 2006.
Jurassic Park. Dir. Steven Spielberg. With Sam Neill, Laura Dern, Jeff Goldblum, and Richard Attenborough. Universal Pictures and Amblin Entertainment, 1992.
Over the last few hundred years, more and more has been added to the world’s fossil collection, fossils from all over the world. New theories have been created and old theories have almost been proven about the evolution of man. For example, we have proof that different species of man existed with certain types of DNA sequences and instincts, some we may not have anymore, or some that other species did not have back then. Even though it is subjected to much debate, one of the most widely accepted theories however, is that Homo sapiens interbred with the slightly more primitive species of man, the Neanderthal.
Michael Crichton’s classic novel Jurassic Park sparked controversy among scientists, excited science-fiction fans, and captivated paleontologists as Chrichton proposed the idea that dinosaurs could be cloned. The plot elicited criticism from scientists around the world, but support from others. Cloning a dinosaur was made possible in the fictional text: take some amber, fill in missing DNA, obtain an ostrich egg, keep the egg in a controlled environment, then a dinosaur is born. Unfortunately, each of the steps are of intricate design.
“Sex, Drugs, Disasters, and the Extinction of Dinosaurs” is written by Stephen Jay Gould, professor of geology and zoology at Harvard. This essay is one of more than a hundred articles on evolution, zoology, and paleontology published by Gould in national magazines and journals. It tells about scientific proposals for the extinction of dinosaurs – a confusing but an exciting problem that humanity tries to solve. By analyzing and describing each of the claims for the reptiles’ demise – sex, drugs, and disasters – Gould differentiates bad science from good science and explains what makes some theories silly speculations, while the other, a testable hypothesis.
The human archaeological record is a long and undefined story that may be the most complex question researched today. One of the big questions in human history is the disappearance of the Neanderthal people from the archaeological record around 30,000 BP. While for thousands of years Neanderthals and Anatomically modern humans crossed paths and perhaps lived in close relations, we have yet to really understand the degree to which they lived together. My hypothesis is that these two hominids, Neanderthals and Anatomically Modern Humans, interbred exchanging genes after Modern Humans dispersed from Africa and creating like cultures and material remains. The differences between Neanderthal and Modern humans are not only physical but also genetically evolved and this research will determine an estimated amount of admixture between the two groups.
In recent years, the Homo Neanderthalensis were viewed as “subhuman brutes”, but are now seen as a different species from our own (Balter 2001). The Neanderthals were a branch of the Homo genus that evolved in Eurasia at least 200,000 years ago (Fagan 2010). The first Neand...
Movies are the biggest time killers in the United States of America, where an average person watches about 20-30 movies a year. They are separated and categorized into many category, but one of the biggest category is science fiction. Science fiction is fiction based on imagined future scientific or technological advances and major social or environmental changes, frequently portraying space or time travel and life on other planets. One of the biggest and most famous science fiction movie is Jurassic Park, which is a science fiction-adventure-drama film directed by Steven Spielberg, based upon the novel of the same name, written by Michael Crichton. The story involves scientists visiting a safari amusement park of genetically engineered
We use dinosaurs to represent the changes in nature that have occurred throughout time. Studies found that although the “oldest rock did not show evidence of life, the progression of plant and animal life that changed in recognizable intervals, from ancient life, age of reptiles to the age of mammals” (Dino Nature Metaphor, slide 6), measured the age of the earth. When we think of dinosaurs in relation to nature, we think of that very powerful force that controls the cycle of life. Nature was able to yield such magnificent ferocious creatures that walked the earth and then take them back when they served nature’s purpose. Dinosaurs fit perfectly in nature’s constant
From the ancient bones of the Neanderthals, scientists have been able to extract small amounts of DNA. The DNA comparisons to modern humans show no relationship, implying evolutionary separation (Kunzig, 159). Some anthropologists say the small sections of DNA found are not conclusive evidence, because modern humans show just as much variation in DNA. These people point out that individuals such as the “Portugal Kid” are hybrids of Neanderthals and modern humans, showing there was gene trading. One argument against this is that there is no skull from the ‘Portugal Kid” so it is hard to compare it to Neanderthals. Also, it is known that closely related species can breed and their offspring can be fertile, but they are still separate species (Kunzig, 161).
Scientists thought that interbreeding would be a logical assumption to the Neanderthal conundrum. Unfortunately, any evidence of DNA from Neanderthals mixed with human DNA is difficult to come by because their fossils are usually tarnished upon finding. That is until Svante Paabo, and his research team from the Max Planck Institute for Evolutionary Anthropology, came across the remains of twenty-four Neanderthals and forty early humans.* All of these fossils were nearly 40,000 years old and were from Germany, Russia, and Croatia. Nine of these fossils (four Neanderthal and five human)
Jurassic Park is a book about the cloning of dinosaurs and they are used as the park entertainment on an island. In this park where dinosaurs are the attraction, not every thing will go as planed. Reading this book will teach someone how Michael Crichton feels about biological science and the cloning of extinct animals. There are things that caused the park to be unsuccessful. Dr. Malcom and Dennis Nedry where two of the parks problems, and the other was the nature of the animals.
The path from finding and sequencing suitable DNA, as well as providing a host for growth and a suitable environment for it to function is beset with many obstacles. Maybe after decades of extensive research in each of these areas, such a project as recreating a dinosaur may be attempted, but most scientists agree that their"extinction is permanent" (Paabo, 1993). Thus, cloning dinosaurs or any ancient organism, remains a frontier of the future. However, as David Grimaldi writes, "While it is a long way from amplifying a bit of DNA to reconstruct a whole dinosaur - or even a termite - these new developments open up many exciting scientific possibilities" (1993).
Jurassic Park is an action packed movie based around the recreation of dinosaurs, but the dinosaurs are all female to control birth. The dinosaurs were created by DNA from preserved insects in ancient amber. Because the DNA is so old, sections of chromosomes were not there. To patch the empty spots, the scientists used frog DNA. In the movie, one of the scientists, Malcolm, says that controlling the dinosaur population by having only females will never work, and that nature will find a way around this. Sure enough in one scene Dr. Grant notices broken egg shells with foot prints walking away from them. Dr. Grant says that the all female dinosaur habitat was able to create new life due to sequential hermaphroditism.
Jurassic Park, by Michael Crichton is an incredible book, which describes genetic engineering and the creation of an extinct species. Michael Crichton uses marvelous detail throughout the book. As great as the book is, it is not that appropriate for children who are 15 and under because of the gore, description, violence, and obscenities through out the story.
Zimmer, C. (2013, December 5). Baffling 400,000-Year-Old Clue to Human Origins. New York Times, p. A10(L). Retrieved from http://ic.galegroup.com/ic/scic/NewsDetailsPage/NewsDetailsWindow
Reptiles are vertebrate, or backboned animals constituting the class Reptilia and are characterized by a combination of features, none of which alone could separate all reptiles from all other animals.The characteristics of reptiles are numerous, therefore can not be explained in great detail in this report. In no special order, the characteristics of reptiles are: cold-bloodedness; the presence of lungs; direct development, without larval forms as in amphibians; a dry skin with scales but not feathers or hair; an amniote egg; internal fertilization; a three or four-chambered heart; two aortic arches (blood vessels) carrying blood from the heart to the body, unlike mammals and birds that only have one; a metanephric kidney; twelve pairs of cranial nerves; and skeletal features such as limbs with usually five clawed fingers or toes, at least two spinal bones associated with the pelvis, a single ball-and-socket connection at the head-neck joint instead of two, as in advanced amphibians and mammals, and an incomplete or complete partition along the roof of the mouth, separating the food and air passageways so that breathing can continue while food is being chewed. These and other traditional defining characteristics of reptiles have been subjected to considerable modification in recent times. The extinct flying reptiles, called pterosaurs or pterodactyls, are now thought to have been warm-blooded and covered with hair. Also, the dinosaurs are also now considered by many authorities to have been warm-blooded. The earliest known bird, archaeopteryx, is now regarded by many to have been a small dinosaur, despite its covering of feathers The extinct ancestors of the mammals, the therapsids, or mammallike reptiles, are also believed to have been warm-blooded and haired.