Purines pair with pyrimidines: adenine with thymine (or uracil in RNA) and guanine with cytosine.
Standard detail
6.1.B.1.iii
Depth 4Parent ID: 0B6E2225137543E396E1823C904C3DA6Standard set: AP Biology (2025)
Original statement
Quick facts
- Statement code
- 6.1.B.1.iii
- List ID
- iii
- Standard ID
- 3309E6E2CD674D87AF469402F78A231D
- Subject
- AP Biology
- Grades
- 09, 10, 11, 12
- Ancestor IDs
- 0B6E2225137543E396E1823C904C3DA624ECD691CFD042068CCE822F13B8DFE95AD7A89D26E44B6186EE1C5E6A7D4492671904ADEA2447E79FF52BA44E3AD695
- Source document
- AP® Biology COURSE AND EXAM DESCRIPTION Effective Fall 2025
- License
- CC BY 4.0 US