How is the structure of DNA related to its function

The sugar-phosphate backbone is double stranded so protects the bases; DNA is a large molecule so can store lots of information; DNA is coiled so compact;Base sequence codes for amino acids; DNA is double stranded so replication can occur semi-conservatively; Weak hydrogen bonds present allows for strand separation for replication

IH

Related Biology A Level answers

All answers ▸

Cannabinoid receptors are found in the pre-synaptic membrane of neuromuscular junctions. When a cannabinoid binds to its receptor, it closes calcium ion channels. Suggest how cannabinoids could prevent muscles contraction?


Explain how changes in temperature and pH affect the rate of an enzyme-catalysed reaction. Give appropriate diagrams to illustrate your answer. [6]


How is tissue fluid and lymph formed?


How does cholera cause diarrhoea and dehydration?