Dear Priti, there are 3 sections in NEET; Physics, Chemistry and Biology. Biology has 90 questions while Physics and Chemistry have 45 questions each. Each right answer gives you 4 marks and a wrong answer takes away 1 mark in the form of negative marking. And in total, the paper and the scoring is done for 720. If this is not about NEET and some other course, please help us with that information so that we can help you.