CAIE A-Level Biology AS 6.1.4 Dna Double Helix Structure Questions
Explain DNA double-helix structure, complementary base pairing and hydrogen bonding using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Exam points
- Explain the structure of the DNA double helix, including complementary base pairing and hydrogen bonding.
CAIE A-Level Biology AS 6.1.4 Dna Double Helix Structure Questions question 1
[Maximum number: 1]
How many phosphodiester bonds are present in a circular DNA molecule of 2700 base pairs?
A
2699
B
2700
C
5398
D
5400
D
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