Retains six IGS repeats.
Construct: Deletion of 18S gene and most of the external transcribed spacer (ETS).
4.1kb segment of bb consisting of a complete intergenic spacer (IGS) region, an rDNA promoter and 140bp of external transcribed sequences.
Retains six IGS repeats.
4.1kb segment of bb consisting of a complete intergenic spacer (IGS) region, an rDNA promoter and 140bp of external transcribed sequences.
Construct: Deletion of 18S gene and most of the external transcribed spacer (ETS).