attributes.tag: source_name
attributes.value: White Leghorn
attributes.tag: developmental stage
attributes.value: HH19
attributes.tag: genotype
attributes.value: WT
attributes.tag: dissection
attributes.value: A portion of tissue corresponding to the tailbud, presomitic mesoderm, and 2-3 somite pairs, was micro-dissected from one HH19 embryo.
attributes.tag: breed
attributes.value: White Leghorn