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DNA & Genetic Testing

  • Protein Synthesis: How Are Proteins Built?

    Proteins are the building blocks of the cell. They perform many critical functions that are needed for survival. Their manufacture starts in the nucleus when they are molecules of DNA. This article looks at the process of protein synthesis.
    Published by bala (5939 pts) on Sep 11, 2009 to
    Genetics Articles

  • Ancient DNA: How Old is Old?

    The oldest known DNA molecules date back some 450,000 - 800,000 years ago. They were found in Greenland and were in reasonable shape. Details were published in 2007 as DNA analysis revealed much about the history of this part of the world.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • Ancient Iceman Has No Modern Relatives

    Genghis Khan may have left his genetic mark on millions of people today, but not so Oetzi the Iceman. Part of his genome has undergone another thorough analysis and it turns out that he belongs to a genetic lineage that is rare today or has died out.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • DNA Fingerprinting History: Its First Use in Criminology

    DNA fingerprinting was first applied to a criminal case in 1986, a year after the world first heard about the technology. It established the innocence of a man who had been suspected of murdering and raping two young schoolgirls.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • How DNA Fingerprinting Works: It's First Ever Use

    The landmark 'DNA fingerprinting' paper by Sir Alec Jeffreys was published in Nature in 1985. The technology was used for the first time shortly after it appeared in the prestigious science journal. It helped to solve an immigration dispute.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • How RNA is Formed From DNA

    The genetic code is written in the language of DNA, but is not translated directly into proteins. It goes through a process of conversion into an intermediate stage where it exists as RNA. This RNA is known as messenger RNA.
    Published by bala (5939 pts) on Sep 11, 2009 to
    Genetics Articles

  • Bigfoot DNA

    Bigfoot has been busy lately. Hundreds of eyewitness accounts, videos, photographs and tracks have been recorded - this creature certainly isn't shy. But does it really exist? There is no conclusive proof at the moment, but DNA testing might be able to give us the answer.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • The Scientists Who Discovered DNA Structure

    It was Crick and Watson's landmark paper that detailed the double helical structure of DNA. But there's a long list of inspirational scientists who played key roles in one of the biggest discoveries of the twentieth century.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • Who Discovered DNA?

    It was Crick and Watson who worked out the structure of DNA in the 1950s, but its discovery was made nearly 100 years previously by a Swiss physician called Frederick Miescher.
    Published by Paul Arnold (15377 pts) on Sep 11, 2009 to
    Genetics Articles

  • DNA Structure: How is DNA Packed into a Nucleus?

    DNA is in an incredible structure. This tightly coiled molecule houses the genes that an organism needs to grow and survive, and packing them all inside a cell's nucleus is an incredible feat.
    Published by cool-deviant (1873 pts) on Sep 4, 2009 to
    Genetics Articles
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