Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.

  1. Health & Medicine

    New ways to fight the flu

    Influenza sickens millions each year. A worldwide epidemic could kill many of them. Fortunately, new ways to fight the flu offer hope — before it’s too late.

  2. Health & Medicine

    Do mosquitoes love you? Blame your parents

    By studying twins, scientists found that how attractive we are to mosquitoes depends partly on our genes. That could lead to better bug repellents.

  3. Genetics

    Silencing genes — to understand them

    Hijacking a cell process called RNA interference can let scientists turn off a selected gene. Its silencing can point to what genes do when they’re on — and may lead to new treatments for disease.

  4. Health & Medicine

    Mice can teach us about human disease

    Humans and mice look and act very differently. But 85 to 90 percent of their genes are the same or quite similar. So an international group of scientists is deciphering the instructions in mouse genes to help us better understand our own.

  5. Agriculture

    Livestock: A need to save rare breeds

    New studies and ongoing work highlight why society should save rare livestock breeds — and the part that technology can play.

  6. Genetics

    High-altitude help from extinct ancestors

    The Tibetan plateau is high in altitude but low in oxygen. An unusual version of one gene in Tibetans' DNA helps them survive this environment. And that gene appears to have been passed along from Denisovans, a Neandertal-like ancestor.

  7. Genetics

    Newfound DNA ‘enhancer’ behind many natural blonds

    Some snippets of DNA other than genes play a role in giving some people of European a golden crown of hair.

  8. Health & Medicine

    Teen uncovers new weapons to stop Huntington’s disease

    David Seong, an Intel Science Talent Search finalist, is studying how tiny pieces of genetic material might be used to lock up a dangerous protein in Huntington’s disease.

  9. Animals

    Deep-down worm is far out

  10. Animals

    Awake at Night

  11. Genetics

    A butterfly’s new green glow

  12. Genetics

    Baby swaps, crime scenes, and DNA testing