Biology

Go through the link below for details :
https://www.shiksha.com/b-tech/gujcet-exam-question-papers.

As you have studied Biology in +2 along with Science. You have a good option to go for Engineering or Medical stream. Just analyse which are your strong subjects and accordingly choose the field of specialisation for Bachelors.

Hello,
Maths is not compulsory. You just need basic knowledge of 11th-12th mathematics and that is enough for what is required. Good luck.

You need Biology as compulsory in addition to Physics and Chemistry for admission.

You need to score the minimum scoring marks of PCB combination. In certain situations, your CS will be taken as optional subject and its marks won't be taken in account for biology seats. What you need to do is apply for admission while simultaneously preparing for compartment. By the time of admissions there is high probability that compartment result be declared beforehand.

Please refer to the link provided below for details regarding admissions for M.Sc in Marine Biology and Oceanography in Annamalai University. You can download their brochure which contains accurate information regarding course eligibility, admissions etc. from the institute in question.
https://www.shiksha.com/science/course/m-sc-marine-biology-oceanography-annamalai-university-tamil-nadu-other-169929

Hi Ritik,
If you can score above 530 total, you can easily get through NEET. And there is no consideration of your 10th marks, but you should pass your 2nd PUC with qualifying percentage.

Yes, physics is very important to get admission for MBBS. First of all, its not that easy to score 350/360 in bio, if you get 320 in bio, 80-90 in physics and 120-130 in chemistry, then you can be sure enough about getting government MBBS. Else private will be the only option left.