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. Animals

    The many efforts to lick cat allergies

    Up to one in five people around the world may be allergic to cats. Science is coming to help their desire for kitty cuddles.

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  2. Health & Medicine

    Immune arms-race in bats may make their viruses deadly to people

    An overactive immune system may help bats avoid being sickened by many viruses. This may viruses becoming stronger — and deadlier — when they hit other species.

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  3. Health & Medicine

    Experts rethink need for X-ray shielding of patients

    For close to 70 years, workers who perform X-ray scans of the body have been advised to shield sensitive tissues with lead 'aprons.' That may soon stop.

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  4. Health & Medicine

    Your most urgent questions about the new coronavirus

    Researchers have more questions than answers right now about 2019-nCoV. They’re racing to understand and stop the coronavirus and the health crisis it poses.

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  5. Health & Medicine

    Explainer: What is a coronavirus?

    Coronaviruses are a diverse family of disease-causing agents. Some cause the common cold. Newer ones have emerged to pose more serious threats to people.

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  6. Health & Medicine

    Serious virus emerges in China and is spreading globally

    A new viral infection emerged in December 2019 among people in Wuhan, China. The mystery illness has already killed at least 17 people and sickened many hundreds.

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  7. Animals

    Why are bird eggs in cold climates darker colored?

    A global survey of bird egg color has revealed a simple trend: the colder the climate, the darker the egg.

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