Heredity: Inheritance and Variation of Traits

  1. Animals

    Awake at Night

    Mutant fruit flies can get by with less sleep than these insects normally need.

  2. Genetics

    A butterfly’s new green glow

    Scientists have tweaked a butterfly's genes to make its eyes glow green.

  3. Genetics

    Animal clones: Double trouble?

    From agriculture to medicine to law, animal cloning to create genetic twins could change our lives.

  4. Genetics

    A DNA Clue to Reading Troubles

    Scientists have identified a gene involved in a learning disorder called dyslexia.

  5. Genetics

    Baby swaps, crime scenes, and DNA testing

    By looking at animal DNA, investigators are solving crimes and conservationists are helping save endangered species.