Hi

There are a number of UG courses having good scope after your 12th biology group or  PCB group but which course will be good  for you and you should go for depends upon following factors

*Your interest
*What do you want to become,

For example,
if you want to become a doctor you will have to do mbbs , if you want to be a journalist , then you will have to do bachelors in journalism, if you want to be a Lawyer you will have to do 5 year integrated LLB, if you want to become a fashion designer then you can go for Bachelor of Design

After 12th science stream , bio group , you can go for following top courses for your graduation depending upon your interest:-

*MBBS.
*BDS.
*BAMS
*BHMS
*Bachelor of Veterinary Science & Animal Husbandry
*Bsc Nursing
*Bsc agriculture
*BSc biotechnology
*B Pharma
*Bachelor of Physiotherapy.
*Paramedical courses
*BSc dairy technology
*BSc microbiology
*BSc. Medical Laboratory Technology
*BSc. Cardiac Laboratory Technology
*BSc. Dialysis Technology
*BSc. Neuro Technology
*BSc. Nuclear Medicine Technology
*BSc. Operation Theatre Technology
*BSc. Perfusion Technology
*BSc. Radiotherapy Technology
*BASLP (Bachelor in Audiology & Speech Language Pathology)
*Bsc zoology/chemistry
* 5 year LLB
*BDes i. e Bachelor of Design.

So , take your time and depending upon above aforesaid  factors, you can make a choice of course for yourself

For more courses go through

https://school.careers360.com/articles/courses-after-12th-in-biology

If you have any other doubt then you can always reach us to clear them :) we are always available to help you out and guide you

Thank you