Undeclared to a science major?

I went as undeclared and was accepted, now I was thinking to possibly transfer from undeclared to one of the science majors (neurobio, human bio, biochem/molecular, etc). I understand the requirements to transfer from one major to the next, but my question is, are the bio science majors at uci fully impacted?

I know UCI’s business/CS/some engineering/pharmaceutical are impacted, but not too much is said about their biological sciences programs.

Yes, Biological sciences are impacted. Contact the department and ask about the odds of switching majors.