Which of the following is an incorrect pair?

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(B) The correct answer is $B$. $A$. Somatic hybridization involves the fusion of protoplasts from two different plant species to create a hybrid. This

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Vector $DNA$ - Site for $t-RNA$ synthesis

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(B) The correct answer is $B$. $A$. Somatic hybridization involves the fusion of protoplasts from two different plant species to create a hybrid. This is correct. $B$. Vector $DNA$ is a $DNA$ molecule used as a vehicle to artificially carry foreign genetic material into another cell. It is not the site for $t-RNA$ synthesis; $t-RNA$ is synthesized in the nucleus from $DNA$ templates. Thus,this pair is incorrect. $C$. Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants using modern plant tissue culture methods. This is correct. $D$. Callus is an unorganized mass of parenchyma cells that develops from explants during tissue culture. This is correct.

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