HS-LS3-2

Make and defend a claim based on evidence that inheritable genetic variations may result from: (1) new genetic combinations through meiosis, (2) viable errors occurring during replication, and/or (3) mutations caused by environmental factors.

More Stories in HS-LS3-2

  1. Life

    Scientists watch germs evolve into superbugs

    To study how bacteria can evolve resistance to a wide variety of drugs, scientists spread the germs on a food-filled plate the size of a foosball table. Then, they watched resistance rise.

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  2. Genetics

    Wolf species shake-up

    A genetic study says red wolves and eastern wolves may really be mixtures of coyotes and gray wolves, not distinct species.

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  3. Animals

    The turning of wolves into dogs may have occurred twice

    The process of turning wolves into dogs, called domestication, may have occurred twice — in the East and the West — ancient DNA suggest.

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  4. Health & Medicine

    Common plant could help fight Zika virus

    A teen discovered that extracts from leaves of the San Francisco plant (Codiaeum variegatum) kill larvae of the mosquito that helps spread the Zika and dengue fever viruses.

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  5. Genetics

    Genes: How few needed for life?

    Scientists rebuilt a microbe using its old genes. But not all of them. They used as few building-blocks as they could get away with and still have the life-form survive.

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  6. Chemistry

    Trio gets chemistry Nobel for figuring out DNA repair

    Three researchers have won the 2015 Nobel Prize in chemistry for working out how cells fix damaged genetic material.

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  7. Health & Medicine

    Chikungunya wings its way north — on mosquitoes

    A mosquito-borne virus once found only in the tropics has adapted to survive in mosquitoes in cooler places, such as Europe and North America.

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