Botany

It depends on college to college. Yes, in prestigious colleges, they take an exam, and in some colleges, they offer you on the basis of your graduation percentage.

Yes, you can apply but you must have mathematics as a subject in your 10+2 course.
Thank you.

You can refer these books for further clarity on the subjects you have chose for entrance exams.
1. Book: M.Sc Biotechnology Entrance Exam Objectives
Author: Kumar P, Arti Gupta, Preeti Tripathi
Guide and practice papers by Prabhanshu Kumar
2. B.D Singh- Plant Tissue Culture.
3. Shular -Bioprocess and Fermentation Tech
4. T.A. brown- Gene Clonning
I hope these books will be helpful. All the best for your exams. Thank you.

Yes, you can opt for M.Sc Botany if you have opted botany as a generic elective course during your B.Sc.

According to your marks, you can get admission in any of the colleges. You need to check previous year cut-off list. Hans Raj Miranda House, Gargi, Maytari, etc. These are some of the colleges with the best zoology or botany department.

Please refer to the link below for eligibility criteria:
https://www.shiksha.com/teaching-education/exams/Kerala-set.

Yes, you are eligible for M.Sc Zoology.