Amplification, polytenisation, and nucleolus organisers.
D000557:Ambystoma; D000818:Animals; D002466:Cell Nucleolus; D002874:Chromosome Mapping; D004261:DNA Replication; D005260:Female; D005796:Genes; D006824:Hybridization, Genetic; D010063:Ovum / Q000378:metabolism*; D011123:Polyploidy; D012335:RNA, Ribosomal / Q000096:biosynthesis*; D014158:Transcription, Genetic; D014562:Caudata; D014981:Xenopus
D012335:RNA, Ribosomal