Practice question

Question

Given below are four statements regarding genetic transformation of plants in the laboratory: A. Plants incapable of sexual reproduction cannot be transformed by Agrobacterium tumefaciens B. Integration oftransgene in organcllar (chloroplast) genome occurs primarily by homologous recombination C. An enhancer trap construct used in Agrobacterium -mediated transformationn would contain a functional coding sequence of a reporter gene and a minimal promoter D. A To transgenic plant containing two unlinked copies of a selection marker gene ( hpt ) and one copy of the passenger gene ( gfp ) would segregate in a 1:1 ratio for hygromycin resistance: sensitivity in the backcrossed progeny grown on selection media Which one of the combinations of above statements are correct?