What are opines encoded by Agrobacterium tumefaciens T-DNA?

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A. Transcription factors that stimulate uncontrolled cell division

B. Genes that regulate transfer of T-DNA from the bacterium to the host cell
C. Enzymes involved in nitrogen fixation
D. Amino acids not normally synthesized nor metabolized by plants
asked Jun 24, 2013 in Genetics by bo1978 (35 points)

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