Hey Applicant

Yes you can pursue the M.sc Marine biology course even after you completed your graduation in B.Sc Zoology, as the eligibility of the course-  following are the minimum eligibility criteria for admission in M.Sc Marine Biology course: The candidate must hold a Bachelors degree in Life Sciences (Marine Biology, Zoology, Botany, Biochemistry, Microbiology, Biotechnology, and Fisheries and Aquaculture) . The minimum percentage in the qualifying exam should be 55%- 60%.

Hope it helps!!!