organism: Caenorhabditis elegans
attributes.tag: source_name
attributes.value: Mixed stage early embryos
attributes.tag: strain and  genotype
attributes.value: N2 wild type
attributes.tag: purity of sample
attributes.value: 1
attributes.tag: chip antibody
attributes.value: H3K4me3 (Wako, MABI0304, #305-34819)
attributes.tag: xchromosome
attributes.value: autosome ratio: X:A=1:1 (vast majoriy XX hermaphrodites)