Hello,

There is no sectional cut off marks in NEET so if you score the minimum cut off marks by only attempting questions in Biology then you are eligible to seek admission in any medical College provided you must fulfill the other eligibility requirements.

Now, the cut off for dental Colleges in Maharashtra under state quota was around 330 and above considering this you may get seat if you score minimum 350-380 marks because cut off changes every year depending on number of candidates appeared, number of seats available, difficulty of exam etc. And scoring 300+ in Biology alone might not be possible as there is negative marking in NEET. So you need to attempt Physics and Chemistry to get good marks.