If you want to transfer, make more preparations and contact your tutor, there should be no problem.
But I advise you to give up this idea.
This major, the master's degree came out to engage in research, people did not recognize it, and there was no suitable position to enter the enterprise.
If you are going to study, get ready for a doctorate.
If you study mathematics, why don't you switch to computer-related majors? This kind of major is easy to find and the treatment is much higher than that of cell biology.
Don't choose this major unless you want to devote your life unconditionally to the cause of cell biology in China.
I just took my Ph.D. in this major two days ago, and my tutor told me that I would have to study for four to five years before I could graduate.
Think about it.