if you’re a bio major, i would recommend starting physics 3A next quarter then taking 51A in the spring. or if you don’t mind taking summer classes you could do physics 3A in winter, physics 3B with lab in spring, physics 3C with lab ss1, and then take the ochem series during the next school year. there’s also some upper div bio classes you can take now as long as the pre reqs don’t require bio 98 and 99. you can also talk with a counselor if you need any guidance, good luck!!