3
The secondary antibody used for both BrdU and nucleoli staining was a rhodamine ( tetra - methyl ) - conjugated goat anti - mouse antibody ( T - 2762 ) from Molecular Probe ( Eugene , OR ) .
 nucleoli
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 nucleoli