Genetics

  1. 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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  2. Life

    Cities drive animals and plants to evolve

    Biologists are finding that some species have used genetic changes to evolve — adapt — to the pollution and other stressors that they encounter in cities.

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  3. Genetics

    How to view tiny parts of DNA? Make them ‘blink’

    A new technique can image nanoscale structures in cells without hurting them. No dyes needed. All you have to do is stimulate them with the right color of light.

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  4. 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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  5. 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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  6. 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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  7. 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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  8. Genetics

    Scientists Say: eDNA

    Animals may escape traps or nets, but they often leave DNA behind in their environment, giving scientists important clues.

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  9. Microbes

    New date for U.S. arrival of the AIDS virus

    A new study shows that HIV started circulating at least a decade earlier than previously realized.

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  10. Genetics

    Human DNA carries hints of unknown extinct ancestor

    A new study suggests people today carry genetic traces of now-extinct species unknown to science.

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  11. Plants

    Young sunflowers keep time

    The plants don’t just use light to follow the sun. An internal clock helps their stems bend as the sun moves across the sky.

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  12. Genetics

    Explainer: What is epigenetics?

    Epigenetics is the study of molecular “switches” that turn genes on and off. Tweak those switches and there could be big health consequences.

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