Yes, it is eligible for a candidate to apply for neet exam studying final year of class 12 under code 01 which says that a candidate will be eligible to apply but he/she will not be eligible for admission to the MBBS or BDS if he/she does not pass the class 12 exam with the required pass percentage of marks at the time of first round of counseling.

candidate must have passed in the subjects of Physics, Chemistry, Biology/Biotechnology and English and must have obtained a minimum of 50% marks taken together In Physics, Chemistry and Biology/Biotechnology at the qualifying examination. Candidates belonging to Scheduled Castes, Scheduled Tribes or Other Backward Classes, the marks obtained in Physics, Chemistry, and Biology/Biotechnology should be 40% marks instead of 50% marks for Unreserved Candidates and 40% for SC/ST/OBC candidates. For PWD candidates the minimum marks in the qualifying examination in Physics, Chemistry, and Biology (or Botany & Zoology)/Bio-technology should be 45% instead of 50% for Unreserved category.

To prepare for NEET exam 2019 you can go through the link provided below - https://medicine.careers360.com/articles/how-prepare-for-neet-2019-at-home