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Showing results 11-21 of 35 for 'Molecular genetics'

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    Viruses Overheard Talking to One Another

    For the first time, viruses have been found to communicate with one another, leaving short “posts” for kin and descendants. The messages help the viruses reading them to decide how to proceed with the process of infection.

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    Science Tips, November 2014

    Three updates from the labs of the Weizmann Institute: at last, water on Mars explained; identifying an unusual zinc-pump mechanism that may be faulty in Alzheimer's disease; and finding that microbes that breathe sulfur prefer it to be light.

  • Science-Tips-July-2012-Fools-Gold-thumb
    Science Tips, July 2012

    Three updates from the Weizmann Institute: fool's gold regulates environmental oxygen; finding a molecular mechanism behind faulty stem cells and cancer; and solving the mystery of where importins – proteins critical to healing nerve damage – are produced.

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    New Stem Cells Go Back Further

    One challenge in using induced pluripotent stem cells (iPSCs) – which are ""reprogrammed"" regular cells – is that they retain traces of their former identity (e.g., skin cells). Dr. Jacob Hanna has now created iPSCs that are completely reset to the earliest possible state. This could lead to applications such as custom-grown transplant organs.

  • Science Tips, March 2007

    Four research updates from the Weizmann Institute: details of bone-eating cells; an immune system security measure; understanding the mechanics of hearing; and debating the workings of the brain. 

  • Science Tips, June 2012

    Three updates from the Weizmann Institute: losing money sheds light on the evolutionary conditioning behind PTSD; blocking a chemical messenger stops cancer; and a ""microprocessor"" balances efficiency and specificity in RNA.

  • Science Tips, February 2012

    Three updates from the Weizmann Institute: Weizmann is a European Integrated Structural Biology Infrastructure Core Centre; how cells are able to endure starvation; and an ""on/off"" switch in the brain helps regulate a biochemical signal related to stress.

  • Science Tips, February 2013

    Three updates from the Weizmann Institute: a pre-explosion signals that a star is about to go supernova; a two-antibody approach for attacking triple-negative breast cancer; and a genetic device, operating independently in bacteria, performs DNA diagnosis.

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    Leukemia Cells are Addicted to a Healthy Gene

    Leukemia cells are able to stay alive, aggressively dividing, virtually forever… but how? New Weizmann research suggests that about 25 percent of the time, there is a ""balance of terror"" between the cancer-promoting gene and a second, normal version. This normal gene functions alongside the mutation, keeping the cells both cancerous and alive.