Hello,

NEET consists of questions from Physics, Chemistry and Biology.Out of the 90 questions in Biology  45 questions will be  from Botany and 45 questions from Zoology.You can score about 300 plus marks if you study NCERT Biology text alone.A large number of questions will be NCERT based.But still it would be better if you go through some reference books as well.

Check out the link below to know more about the recommended textbooks :

https://medicine.careers360.com/articles/are-ncert-books-enough-for-cracking-neet