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operon

n.
1.a segment of DNA containing adjacent genes including structural genes and an operator gene and a regulatory gene

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Word of the Day

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  • operetta
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  • operculum
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  • operculated
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  • operator gene
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  • opheodrys
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  • opheodrys aestivus
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  • opheodrys vernalis
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  • ophidia
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  • ophidian
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  • ophidism
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  • ophiodon
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  • ophiodon elongatus
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  • incontinent
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  • salientian
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  • fight back
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  • coragyps
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  • shikse
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  • victoria clafin woodhull
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  • elopement
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  • workroom
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  • metatarsus
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  • good day
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    Idiom of the Day

    go the extra mile
    to do more than one is required to do to reach a goal
    I always try to go the extra mile and help my friends when they need help.



    1.
    Which sentence describes an imaginary past event with an imaginary present result?

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