Chemistry A-Level
hydrogen bonding between bases
What hydrogen bonding between bases means in Chemistry A-Level, as defined for AQA.
Definition of hydrogen bonding between bases
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Reference: AQA
Each bond runs from an N-H on one base to a lone pair on an oxygen or a nitrogen of its partner, holding the two strands together.
Topics that use hydrogen bonding between bases
- DNA (A-level only) (AQA A-Level)
Related terms
- 2-deoxyribose
- charged phosphate groups
- complementary base pairing
- phosphate bridge between sugars
- polar backbone faces water
- purine with pyrimidine
- alternating backbone
- base sequence stores information
Using hydrogen bonding between bases in the exam
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