cotranscriptional mitochondrial rRNA nucleotide insertion
The insertion of one or two non-coded nucleotides during the transcription of a mitochondrial rRNA. Such additions are known to occur in myxomycetes such as Physarum, Didymium, and Stemonitis.
GO:0000154
rRNA modification
is_a
GO:0070705
RNA nucleotide insertion
is_a