hi,

I assume you are asking about post graduate teachers profile job. see for pgt biology group generally candidates must hold post graduate degree related in Zoology, Life Sciences, Bio Science, Microbiology, Genetics, Biotechnology, Molecular biology etc. however candidates must have studied the same paper in graduation. so if you have done msc in life science, you have to study zoology/ botany/ life science subjects in graduation also to become eligible for pgt biology.

however the criteria may differs as per the authorities and organization decision for the qualifying criteria.