organism: Caenorhabditis elegans
attributes.tag: source_name
attributes.value: Ovulated but unfertilized oocytes collected from feminized worms
attributes.tag: strain and  genotype
attributes.value: CF512 rrf-3(b26); fem-1(hc17ts)
attributes.tag: purity of sample
attributes.value: > 90%
attributes.tag: chip antibody
attributes.value: H3K27me3 (Kimura MAB 1E7/CMA323, now marketed as Wako MABI0323 #309-95259)
attributes.tag: xchromosome
attributes.value: autosome ratio: X:A=1:1