Heredity: Inheritance and Variation of Traits

  1. Genetics

    Explainer: How CRISPR works

    Scientists are using a tool called CRISPR to edit DNA in all types of cells.

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  2. Genetics

    DNA tells tale of how cats conquered the world

    Ancient DNA study suggests that domesticated cats spread across the ancient world in two waves.

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  3. Archaeology

    DNA from African mummies tie these folk to Middle Easterners

    Ancient DNA extracted from 90 Egyptian mummies reveals genetic links to Greece and the Middle East.

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  4. Science & Society

    Cool Jobs: New tools to solve crimes

    Future investigators may identify criminals by the microbes they leave behind or by using DNA-like evidence from strands of their hair.

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  5. Genetics

    Scientists Say: Chromosome

    This threadlike structure is made of DNA wrapped around protein. It allows the 3 billion base pairs in human DNA to stay neatly packaged in a cell.

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  6. Tech

    Tweaked germs glow to pinpoint buried landmines

    Finding landmines could become much safer with a new technology. It uses genetically modified bacteria that glow under laser light.

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  7. Health & Medicine

    Analyze This: Zika and microcephaly

    Data from pregnant women with Zika in Colombia helped scientists probe whether Zika causes birth defects.

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  8. Archaeology

    Fossils point to Neandertal diets — and medicine use

    Whether Neandertals were largely meat-eaters or vegans depended on their environment, fossils now suggest. Their teeth also indicate they used natural medicines.

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  9. Life

    How to make a ‘three-parent’ baby

    Scientists combined an egg, sperm and some donor DNA: The end result: what appears to be healthy babies.

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  10. Genetics

    Explainer: How PCR works

    The polymerase chain reaction, or PCR, is like a DNA-copying machine. It duplicates genetic material over and over. Here’s how.

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  11. Genetics

    Scientists find genes that make some kids’ hair uncombable

    Scientists have pinpointed three genes that cause ‘uncombable hair syndrome’ in some kids.

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  12. Genetics

    World’s tallest corn towers nearly 14 meters

    Short nights and a genetic tweak helped novel corn reach record heights.

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