system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Ataxia telangiectasia is chracterised by all of the following except :
assistant
The correct answer is  Answer is B (Decreased levels of a fetoproteins) Persistance of very high levels of oncofetal proteins, including alpha fetoproteins and carcinoembryonic antigens is of diagnostic value - Harrison All other features mentioned as options are characteristics of Ataxia-telengiectasia