Ribosomal RNA genes of Phaseolus coccineus. IV. Structure and comparative-analysis of the intergenic spacer: possible involvement of some nucleotides in the transcription control of coding sequences. Sequence of the intergenic spacer of ribosomal ge

Ribosomal RNA genes of Phaseolus coccineus. IV. Structure and comparative-analysis of the intergenic spacer: possible involvement of some nucleotides in the transcription control of coding sequences. Sequence of the intergenic spacer of ribosomal ge