Practical 2 is too long

[roddypr]

Most students become stuck at question 14, few go on to the "working with DNA" section

[EmelineFavreau]

I agree. Possible alternatives:

• change all questions after 14 for optional bonus/"hacker" questions (this will keep busy the most able, and the rest can do it at home)
• shorten the previous sections (remove Q4, Q9, Q10)

[yannickwurm]

Yes please do this, but please also add a pen and paper question