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Knockin

   Also found in: Wikipedia 0.01 sec.
Knockin
A type of targeted mutation in which an alteration in gene function is produced, usually a gain of function by adding or substituting genetic material.
Example Substitution of a mouse gene sequence for a human sequence


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Others in the list include Tears in Heaven (Eric Clapton), Knockin ' On Heaven's Door (Bob Dylan), I'll Sleep When I'm Dead (Bon Jovi), What A Wonderful World (Louis Armstrong) and Danny Boy (Daniel O 'Donnell).
But when he signed to Specialty Records in 1955, the rock 'n' roll hits began, starting with Tutti Frutti and continuing with Long Tall Sally, Good Golly Miss Molly, Rip It Up, The Girl Can't Help It, Lucille, Keep A Knockin, Baby Face and many more.
Investigators then turned to a more subtle strategy, making what they call knockin mice.
 
 
 
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