I'm studying Bsc microbiology 1 year with allied subject as biochemistry can I eligible for neet under the code no. 5

Yes. You can select code 05. Code 05 says: The first year of the three years degree course of a recognised University with Physics, Chemistry and Biology/Bio-technology including practical tests in these subjects provided the examination is a University Examination and candidate has passed the earlier qualifying examination with Physics, Chemistry, Biology/ Biotechnology with English at a level not less than a core course.