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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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  • operculate
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  • operator gene
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  • operator
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  • operatively
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  • operative field
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  • operative
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  • operations research
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  • operoseness
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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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  • ophidiidae
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  • ophidism
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  • ophiodon
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  • ophiodon elongatus
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  • archangelic
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  • show biz
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  • take to heart
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  • chrysalis
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  • peaceful
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  • tineidae
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  • epistle to the hebrews
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  • french horn
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  • cytisus
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  • trichomanes reniforme
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    Idiom of the Day

    precious few/little
    very few, very little
    I had precious little time to prepare for my final exam. There were precious few people at the concert.



    1.
    His presentation was so lengthy and ...... that it was difficult for us to find out the real ...... in it.

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