Indian Institute of Science Education and Research, Mohali

IISC is much better for research work.

I prefer the courses offered at simplilearn.com. The learning approach is made really interesting. They have a mix of self-paced, interactive and applied learning that provides a better experience and helps obtain better results. The trainer tailored material enables to meet the needs of students with varying skills and abilities.

In IISER exam, 15 questions come from Biology with 45 marks. For more information, you can see below link https://www.shiksha.com/science/amp/iiser-entrance-exam-pattern Thanks!

No, the college only offers integrated Bachelor + Masters of science degree as a course.
https://www.shiksha.com/college/indian-institute-of-science-education-research-iiser-chandigarh-22265

UPES is the best college in all of the colleges you have mentioned above, as this college is best in class for the placements, infrastructure and faculty.

It is not possible to get admission in IISC Bhopal for M.Sc. without giving the JAM exam. First you need to crack the JAM exam, then you get admission.