hello,

Both the courses have good opportunity and both  courses are completely different. Biotechnology is a vast field of life science, genetic engineering. In this field you will learn about cell or tissue culture. Overall the biotechnology  is mainly lab based work.  Where as the radiology is one of the emerging and exciting profession. Here you study the imaging like MRI,CT, X-RAY, PET SCAN etc. This course more involved in hospital. At end its depend upon your interest if you are more like to do lab work then biotechnology is the best option.