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Use the Data Booklet to help you answer these questions - AQA - A-Level Chemistry - Question 9 - 2017 - Paper 2
Question 9
Use the Data Booklet to help you answer these questions. DNA exists as two strands of nucleotides in the form of a double helix with hydrogen bonding between the tw... show full transcript
Worked Solution & Example Answer:Use the Data Booklet to help you answer these questions - AQA - A-Level Chemistry - Question 9 - 2017 - Paper 2
Step 1
Step 2
Complete the diagram below to show the other molecule and the hydrogen bonds between it and adenine.
Answer
The other molecule is Thymine. It should be drawn such that it aligns with adenine showing two hydrogen bonds: one between the nitrogen atom of adenine and the nitrogen atom of thymine, and another between the nitrogen atom of thymine and the hydrogen atom in adenine.