Heredity: Inheritance and Variation of Traits

  1. Genetics

    Just a tiny share of the DNA in us is unique to humans

    Some of these tweaks to DNA, however, may have played a role in brain evolution.

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  2. Health & Medicine

    One key change may have helped the coronavirus become a global menace

    One key mutation may have helped the virus behind COVID-19 better infect human cells.

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  3. Life

    These rabbits can’t hop. A gene defect makes them do handstands

    Mutations in a gene that helps nerve cells work properly rob rabbits of their ability to hop. Instead, the animals use their front paws to move.

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  4. Animals

    Science and Indigenous history team up to help spirit bears

    When scientists and Indigenous people work together, their efforts can benefit bears and people.

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  5. Genetics

    Let’s learn about DNA

    DNA is made of two chemical chains twisted around each other. It stores information that allows cells to grow and function.

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  6. Health & Medicine

    Bringing COVID-19 vaccines to much of world is hard

    The price of not vaccinating nearly everyone across the world could be a longer pandemic and more troubling variants of the new coronavirus.

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  7. Life

    Scientists Say: Egg and sperm

    An egg or a sperm cell contains half of the normal genes an organism needs. They fuse together to form a new individual.

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  8. Humans

    By not including everyone, genome science has blind spots

    Little diversity in genetic databases makes precision medicine hard for many. One historian proposes a solution, but some scientists doubt it’ll work.

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  9. Health & Medicine

    Some young adults will volunteer to get COVID-19 for science

    Researchers will soon give some healthy people the new coronavirus. Their young volunteers have agreed to get sick to speed coronavirus research.

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  10. Animals

    How do you build a centaur?

    A centaur has the torso of a human and the body of a horse. It may sound cool, but it wouldn’t work very well.

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  11. Space

    Space travel may harm health by damaging cells’ powerhouses

    Biochemical changes after going to space suggest that harm to cells’ energy-producing structures, called mitochondria, could explain astronauts’ health issues.

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  12. Humans

    Some identical twins don’t have the exact same DNA

    Identical twins may not be exactly identical. Mutations may arise early in development that account for tiny genetic differences between siblings.

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