–1945 McClintock planted corn kernels that were self-pollinated, meaning that the flowers were pollinated by the silk of their own plant. These kernels came from a long line of plants that had been self-pollinated, causing broken arms on the end of their ninthchromosome. As the maize plants began to grow, McClintock noted unusual colour patterns on the leaves. For example, one leaf had two albino patches of almost identical size, located side by side on the leaf. McClintock hypothesized that during cell division certain cells lost genetic material, while others gained what they had lost. However, when comparing the chromosomes of the current generation of plants and their parent generation, she found certain parts of the chromosomes had switched positions on the chromosome. She disproved the popular genetic theory of the time that genes were fixed in their position on a chromosome. McClintock found that genes could not only move, but they could also be turned on or off due to certain environmental conditions or during different stages of cell development. McClintock also showed that gene mutations could be reversed. McClintock presented her report on her findings in 1951, and published an article on her discoveries in Genetics in November 1953 entitled, ″Induction of Instability at Selected Loci in Maize.″
Her work would be largely dismissed and ignored until the late 1960s-1970s when it would be rediscovered after TEs were found in bacteria. She was awarded a Nobel Prize in Medicine or Physiology in 1983 for her discovery of TEs, more than thirty years after her research and initial discovery.
TEs are more common than usually thought. Approximately 90% of
maize genome is made up of TEs, and 50% in the human genome.…
to you - as if our distance made no difference!
On this morass you and I try to build our lives. No wonder they are cracking up. To render them safe and sound we must rebuild them on the bedrock of I am what I see I am here; what you see is just one of my regional appearances. I alone, at centre, am in a position to say what those myriad appearances are appearances of, and how different they all are from the one Reality that's given rise to them, from what I am looking out of. On this I am the sole and final authority.”
Douglas E. HardingYOU and the world are ONE - the world inside you
IS the world outside you - YOU are in the WORLD -
and the WORLD is in YOU ...