Sunday, November 8, 2009

Scientific Discoveries


Many scientists have made discoveries that have contributed to our vast knowledge, in all fields. This is an article about a scientist that recently died, that contributed to the field of biology.

For this project you will have to read an article about the contributions of a scientist. In this project you will not all read the article I provide. You should read the article that a previous student posted (except the first poster, who will look at my article.) Then write a paragraph that summarizes the article. Paragraphs should be at least three well constructed sentences. If there is a problem with a link, you may select an earlier student post.

Next you should find and link to an article about a different scientist that made a discovery important to the field of biology.

Finally write a paragraph summarizing the material in that article. Again, paragraphs should be at least three well constructed sentences.

Make sure you put your ID and class section on your work. This project is due by midnight Sunday, 11/22. Remember that you need at least one project of either this or the next one posted. If you do both projects one will count for extra credit. If you want to get extra credit you must do this article.

If you have problems, email me at aphsbio at gmail.com. Make sure that you tell me what your problem was, and you can include your completed project.

9 comments:

  1. This article is about a Dr named Paul C. Zamecnik. He discovered a system for modeling protein synthesis that allowed him to easily follow the steps involved in translating the genetic information encoded in DNA into a line of amino acids. Dr. Zamecnik was born in 1912, and started his teachings of biologly at age 16 at Dartmouth. He went to other schools, tought at Harvard, worked with other scientist, and recieved awards. He died at age 69 due to cancer.




    This article is a about a scientist named Dr Adam Britt. He discovered a palm in Madagascar and it was anemd after him. Dr. Britt said that it was much easier to find palm because it is not capable of moveing. He is honored to have it named after him.


    KF RED

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  2. This article from the New York Times is about a doctor by the name of Paul C. Zamecnik. He was a biologist who helped discover an RNA Molecule. He died at the age of 96 in his home in Boston on october 27th. Zamecnik was a very determined man who wanted to unlock the secrets of how a protein is made. The cause of his death was cancer. Dr. Zamecnik also discovered a method for blocking individual genes that pointed the way to a new class of drugs. In the 1950s, Dr. Zamecnik devised a system for modeling protein synthesis in a test tube, so he could more easily track the steps involved in translating the genetic information encoded in DNA into a chain of amino acids, the building blocks of a protein. This man was a very big asset to biology and the science world with all of his breakthrough discoveries.

    Also from the New York Times, was an article about a women who had died at the age of 96 and was a biochemist. Her name is Mildred Cohn. Cohn overcame religious and sex discrimination to advance the study of metabolic processes, research that contributed to the development of medical technologies like M.R.I.’s. She died on October 12th in Philadelphia. Dr. Cohn helped develop different techniques and instruments to measure how enzymes and other proteins behave in the body. This is another person that had done great things for science and will not be forgotten for the breakthroughs she created.


    DL
    Block 4
    Yellow

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  3. It was recently reported that Dr. Paul C. Zamecnik, a highly successful molecular biologist, died due to illness. Dr. Zamecnik was ninety-six years old, but had contributed a lot to science about the production of proteins. His interest began strictly in proteins when an obese patient of his suddenly died, and an autopsy revealed that there was too much fat and too little protein. His sparked interest led him to the discoveries of ribosomes and how they worked with amino acids to make proteins. This was considered a huge milestone of molecular biology. Dr. Zamecnik also had many other discoveries and was educated in many fields of science, but this had been one of his more outstanding discoveries.

    An article provided by a classmate of mine discusses the death of another well known and very well achieved scientist, Dr. Mildred Cohn, a biochemist. She helped contribute to technological advances such as the ability to give an M.R.I to a patient, and also instruments to help measure how enzymes and other proteins work throughout a human body. Her work helped in better diagnosing patients with illnesses. She also overcame religious and sex discrimination as a woman of her time to become a scientist.

    This article announces the winners of the Nobel Prize in Physiology or Medicine. These scientists won the prize this past October for the discovery of cell biology with relevance to aging and cancer. The discovery involved the ends of chromosomes, called telomeres, that get shorter each time a cell divides, and works as a ticking clock for the life span of the cell.

    SS Yellow Block 4

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  4. The article posted by KF Red was about a 43 year old scientist named Dr Adam Britt. He and his colleague, Frank Rakotonasolo found 3 new species of palm trees in Madagascar. One species is being named after Dr. Britt. Dr. Britt was very surprised and elated to have the palm named after him.

    In this H1N1 article
    , doctors Bjoern Peterson and Alessandro Sette have found evidence that the 2009 H1N1 virus has molecular similarities with older strains of H1N1 that have been around since 1988. This could be why older adults are more immune to the H1N1 virus. It also supports why kids are supposed to get vaccinated. They haven’t been exposed to this molecular strain like adults have been, so they haven’t built up any immunity.

    KS Red

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  5. The article posted by SS yellow was about 3 nobel prize winners who discovered that the ends of chromosomes, telomeres, could be used to see how long a cells life span might be. This discovery is leading to advances in reasearch about cancer, and aging.

    In this article from the new york times, christopher mcdougal has made the information public that the human body may be better designed for extreme running that we think. In researching a group of people, called the tarahumara, discovered that instead of in running shoes, the human body functions and holds up much better barefoot. The human body has a natural posture that absorbs shock and makes long distance running simple. While 4 legged animals have the advantage of speed and balance, the human body has evolved to become a wonder at taking the abuse of long distance running. More and more is constantly being discovered about the human body each day, and this is a great example.

    TP

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  6. http://www.nytimes.com/2009/10/27/health/27well.html?scp=6&sq=biologist&st=cse

    TP
    (Missing from the above post.)

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  7. Scientist Paul C. Zamecnik died at the age of 96 on October 27. He had studied the method of protein synthesis and had also discovered a method that blocks individual genes, which had pointed a way to a new class of drugs. But he was mostly known for helping discover an RNA molecule.

    When British marine biologist When British marine biologist Kristy Brown was snorkeling in the Arctic a leopard seal killed her. She was studying the effects on icebergs on onshore marine life when she was violently attacked without warning. Before Brown had become a marine biologist she studied at the University of London, the Southampton University, and the University of Adelaide in Australia.

    CO
    Red

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  8. The article originally posted by Vicki Glaser, was about Paul C. Zamecnik. He was a molecular biologist who helped to unlock the secrets of how a protein is made and led to his co-discovery of transfer RNA. He recently died at the age o 96 at his home in Boston During the 1950’s he devised a system for modeling protein synthesis in a test tube. This let enabled him to encode the genetic information in DNA. In 1956 Dr Zamecnik and his colleagues found a critical element in protein synthesis which they later called RNA. In 1978 he published his first work by showing that a short, synthetic series of nucleotides, the chemical components of DNA and RNA, could be used to inactivate a specific gene. This process which he called antisense technology, is based on the double stranded structure of DNA. Though his antisense concept was skeptical it led to a new class of therapeutic compounds which were called antisense drugs. Though out Paul C. Zamecnik life he contributed in many ways to the Scientific community in the areas of Biology and Bio Chemistry.

    The article I found was about American scientists Elizabeth H. Blackburn, Carol W. Greider and Jack W. Szostak who discovered that chromosomes don't degrade when they replicate because it's all to do with how telomerase makes telomeres to protect the ends of the chromosomes. Cells age as telomeres get shorter, and conversely, they don't age when telomerase activity is high and protects telomere length. This property is reflected in various diseases. For example, cancer cells are considered to have eternal life because their telomere length is preserved when they replicate, while certain other diseases are characterized by defective telomerase, resulting in damaged cells. For this discovery they won the Nobel Prize.
    SC Yellow

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  9. This article is about Paul C. Zamecnik who had recently passed away at the age of 96 due to an illness he died at his home in Boston. Dr Zamecnik is most famouse for discovering a new way for modeling protein synthesis. He also co discovered the transfer of RNA.

    The article I got my information from is about Baron Georges Cuvier. Baron is famous for being the founder of the fields of vertabrate paleontology. He also dicovered comparative anatomy. Baron was always at the head of his class since he first started attending school at the age of 8. http://www.ask.com/bar?q=famous+biologists
    JC Red

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