Hello Aspirant!

Biology as a mainstream subject in undergraduate courses, is splitted into various branches like Zoology, Botany, Biotechnology, Microbiology etc. You can pursue a degree in any of them.
The Indian Institute of Science (IISc Bengaluru) however, provides B.S.(Research) (i.e. similar to Bachelor of Science in Research), in Biology course, where in the 1st, 2nd and 3rd semesters, you will have to take one core course each in physics, chemistry, mathematics, biology, engineering and the humanities.
And at the beginning of the fourth semester, you can choose a discipline for specialization ("major" or "honours") according to your academic interest. The following specializations are available: (1) Biology (2) Chemistry (3) Earth & Environmental Science (4) Materials (5) Mathematics (6) Physics. For the 7th and 8th semesters, you will be given a research project.
This is all about the B.S in Research from IISc.

You need to specify the branch that you want to join in order to get relevant information as the syllabus differs for each institution.

In case your query is regarding B.Sc. in Zoology, according to the Choice Based Credit System (CBCS), the syllabus of Dibrugarh University (for e.g.) usually comprises of different core, discipline specific elective (DSE), generic elective(GE) and skill enhancement courses related to Invertebrate Zoology, Biochemistry, Chordate Zoology, Bioinstrumentation and Biostatistics, Cell and Molecular Biology, Histology, Developmental Biology, Genetics, Animal Behavior, Animal Physiology, Parasitology, Endocrinology, Immunology, Ecology, Economic Zoology etc.

Hope it helps you.
Feel free to ask in case of any further queries.

Hello aspirant,

The syllabus varies college to college so if you mention here the particular college, You wish to know about the syllabus of B.Sc Bio. then I can help you about your query accordingly.

Good Luck!