state that the bases adenine and guanine are purines with a double ring structure, and that the bases cytosine, thymine and uracil are pyrimidines with a single ring structure (structural formulae for bases are not expected)
Standard detail
6.1.2
Depth 2Parent ID: E672B90F08FB433DB2B6EFCC332BE3B2Standard set: Biology 9700: A Level (2025, 2026 and 2027)
Original statement
Quick facts
- Statement code
- 6.1.2
- List ID
- 2
- Standard ID
- AA9C75AF7DE7472A8260DFF06AD8EB3D
- Subject
- Science
- Grades
- ProfessionalEducation-Development
- Ancestor IDs
- E672B90F08FB433DB2B6EFCC332BE3B23C7AE4CD71824EC981324C1B30139525
- Source document
- Syllabus Cambridge International AS & A Level Biology 9700
- License
- CC BY 4.0 US