Hello Aspirant.

Your question is quite unclear and I am unable to make complete sense of it. However, I will try answering it with whatever little sense I can make of it.

If you mean to say that you have studied PCM till class 12 and now you want to enroll in a course that is concerned with biology, let me tell you that there are high chances that you will not meet the eligibility criteria for admission to the said course. This is because most probably any course related to biology will require the student to have studied biology as a subject in classes 11 and 12.

However, if you still want to get into a biology-related course, there is an option, which is to study Biology of the +2 level from the National Institute of Open Schooling (NIOS). It is advisable that you should confirm with the competent authorities once before considering this option.

In case, this is not what you meant, kindly rephrase your question in a better way so that I can provide you with a relevant answer.

Hope you will find this helpful. All the best for your future endeavours.