Dna

DNA Discoveries

By Boylego1

  • Info

    All days and months may not be correct.

  • Genetic Material

    In the early 1950s, scientists recognized DNA as genetic material.

  • DNA Double Helix discovered

    DNA Double Helix discovered
    In 1953, the structure of DNA strands were discovered.

  • 3 Helix Structure?

    In 1954 Linus Pauling became a Nobel Laureate in Chemistry for his work on chemical bonds and the structure of molecules and crystals. He had been trying to figure out the shape of DNA. But his 3 Helix structure theory was wrong.

  • Discovery of mRNA

    RNA was discovered first in 1956 by Elliot Volkin and Lazarus Astrachan.

  • E. coli bacteria

    Experiments with E. coli bacteria became the focus of intense interest in 1959.

  • Discovery of Restriction Endonucleases

    Discovery of Restriction Endonucleases
    Hamilton Smith discovered HindII in
    Haemophilus influenzae.
    Daniel Nathans used HindII to make first
    restriction map of SV40.

  • DNA Sequencing

    In 1973, Gilbert and Maxam reported the sequence of 24 basepairs using a method known as wandering-spot analysis.

  • rDNA

    Paul Berg won the Nobel Prize in 1980 for his groundbreaking work in rDNA research

  • PCR

    Kary Mullis develops PCR. Sells patent for $300M in 1991.

  • Rules

    U.S. Supreme Court rules that life forms can be patented.

  • Mouse

    Mouse
    In 1981 the first transgenic mice were produced.

  • The First

    In 1983, the first transgenic plant, a tobacco plant resistant to anti-biotics was created.

  • Automatic

    In 1983 an automated DNA sequencer was developed.

  • DNA fingerprinting

    DNA fingerprinting
    In 1984, Dr. Alec J. Jeffreys, an English geneticist, was studying gene evolution using muscle proteins. It was during this study that he and his technician, Vicky Wilson, inadvertently came across the "mini-satellites" in the gene's structure that revealed repeating sequences. Jeffreys determined that this repeat sequence was so variable that it represented a unique genetic "fingerprint"---a term he coined to describe his discovery. Matt Ridley, a former science editor for the Economist, descri

  • Plants

    Plants
    In 1985 genetically engineered plants resistant to insects, viruses,
    and bacteria are field tested for the first time.

  • Human Genome Project

    The Human Genome Project was started in 1989 with the goal of sequencing and identifying all three billion chemical units in the human genetic instruction set, finding the genetic roots of disease and then developing treatments.

  • Dolly the Sheep

    Dolly the Sheep
    When Dolly was cloned in 1997 she became the center of much controversy that still exists today.The DNA was from a cell taken from a six-year-old ewe,
    The name "Dolly" came from a suggestion by the stockmen who helped with her birth, in honor of Dolly Parton, because it was a cell similar to hers, a mammery cell.