Heredity: Inheritance and Variation of Traits

  1. 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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  2. 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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  3. 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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  4. 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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  5. 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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  6. 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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  7. Health & Medicine

    Early details emerge about the new U.K. coronavirus variant

    The variant may spread more easily from person to person. That could make continuing to wear masks all the more important, experts say.

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  8. Health & Medicine

    When physicians and veterinarians team up, all species benefit

    When doctors for people and those for animals share their expertise, they can discover new ways to take better medical care of all species.

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  9. Plants

    Here’s how giant pumpkins get so big

    Cinderella took a ride in a pumpkin coach. Though real pumpkins do get big enough, here’s why their ride would be uncomfortable at best.

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  10. Genetics

    Gene editing can alter body fat and may fight diabetes

    Researchers have long dreamed of using brown fat to fight obesity and diabetes. Work in animals shows they’re closing in on achieving that dream.

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  11. Space

    Surviving Mars missions will take planning and lots of innovation

    Astronauts that go to Mars will need protection from microgravity and radiation, plus mini-medical devices to diagnose problems and manage emergencies.

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  12. Plants

    The faster trees grow, the younger they die

    As climate change spurs forest tree growth, it also shortens trees’ lives. That results in a quicker release of climate-warming carbon back into the atmosphere.

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