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A model protease works best at 42 °C and pH 6.5. The experiment shown runs at 35 °C and pH 6.5. Which change can increase its rate at the plateau P? A. Reduce enzyme concentration by half B. Raise temperature from 35 °C to 42 °C C. Add more substrate while…
Identify the DNA-profiling technique used to: (i) make many copies of a DNA region; (ii) separate DNA fragments by size.
The model profiles show one mother, her child and three possible fathers. Deduce the most likely father and give a reason.
Explain why forensic DNA profiles use multiple independent markers.
Compare and contrast the molecular structures of DNA and RNA.
Describe two kinds of DNA sequence mutation.
Explain how comparisons of DNA base sequences provide evidence for evolution.
A model exercise test records the curve shown. Which process explains the rapid lactate rise at higher workloads? A. Lactate is consumed faster than it is produced at every workload B. Muscle converts increasing amounts of glucose-derived material to lactate…
A jellyfish is supported within seawater rather than standing on a solid surface. State the physical property of water responsible for this support.
Discarded large plastic fragments accumulate in a coastal ecosystem. Outline consequences for marine organisms.