Dr Jeyll & Mr HydeWatch
For question A examiners are looking for :
Tight focus on subject terminology
Just talking about the extract
Effect - why did he do this?
Quotes from the extract to support your ideas
Consider structure from start to end
For question B:
Do not talk about the extract
Refer to points across the whole novella
Embeded quotes to back up your ideas
I don't know if this will help but i'm guessing the things they are looking for in AQA and Edexcel will be quite similar.