You can check Transfers by major | University of California to see what the 25th-75th percentile college GPA ranges for admitted and enrolled transfers to various UCs and majors are, in addition to admit and yield rates.
However, if your major prep courses are mostly C grades, that may bias admission chances downward compared to what your overall college GPA may suggest.
You did not mention your overall college GPA, so others here cannot even guess about your chances. However, CSUs which are not impacted at the campus level and where biology is not an impacted major should admit California resident transfer applicants with a 2.0 college GPA and transfer course requirements completed.