This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Anatomy
Glial fibrillary proteins are present in 
Select and explain. 
A. Astrocytoma, B. Medullobalstoma, C. Ependydoma, D. All
A: Astrocytoma
Answer: A: Astrocytoma 
Explanation: Glial fibrillary acidic protein is a protein that is encoded by the GFAP gene in humans. Glial fibrillary acidic protein is an intermediate filament protein that is expressed by numerous cell types of the central nervous system including astrocytes and ependymal cells during development This is present in astrocytoma Refer Robbins page no 1306