Search Results for: mutations

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2,470 results

2,470 results for: mutations

  1. Humans

    DNA reveals details of the peopling of the Americas

    Migrants came in three distinct waves that interbred once in the New World.

    By Tina Hesman Saey
  2. Life

    Tiny human almost-brains made in lab

    Stem cells arrange themselves into a version of the most complex human organ.

    By Laura Sanders
  3. Life

    Many genes in dolphins and bats evolved in the same way to allow echolocation

    Widespread changes scattered across the genomes of distantly related species cooperated to craft the trait.

    By Jessica Shugart
  4. Animals

    Tiger, lion and domestic cat genes not so different

    Genomes of big felines provide insight into their evolution.

    By Tina Hesman Saey
  5. Humans

    Letters from the October 20, 2007, issue of Science News

    Well, read Margit L. Bleecker appears to have discovered that those who score highly on reading tests also score highly on tests of memory, attention, and concentration (“How reading may protect the brain,” SN: 8/18/07, p. 110). I don’t find that highly surprising. Ivan MannHoover, Ala. How it happened stance “Alien Pizza, Anyone?” (SN: 8/18/07, […]

    By Science News
  6. Plants

    Dastardly daisies

    This flower isn’t just any old sex cheat. It can be sexually deceptive three ways and in 3-D.

    By Susan Milius
  7. Genetics

    Monkeys born with edited genes

    A DNA-snipping technique inspired by bacteria shows therapeutic promise.

    By Tina Hesman Saey
  8. Neuroscience

    Diuretic may treat autism, study in rodents suggests

    Drug that lowers chloride levels in brain cells staves off symptoms in mice and rats.

    By Laura Sanders
  9. Neuroscience

    Gene adds wrinkle to brain development

    Mutations in the gene GPR56 results in misshapen folds in the brain tied to intellectual and language disabilities.

    By Laura Sanders
  10. Neuroscience

    Girls may require more mutations than boys to develop autism

    New results may help explain why more males wind up with autism.

    By Laura Sanders
  11. Neuroscience

    Brain chemicals help worms live long and prosper

    Serotonin and dopamine accompany long lives in C. elegans worms under caloric restriction.

    By Laura Sanders
  12. Health & Medicine

    Diet fix eases Huntington’s symptoms in mice

    Supplement improves health of rodents with mutation that causes neurodegeneration like that seen in Huntington’s disease.

    By Laura Sanders