Question

Part E is the actual question and the other two are background information that I already answered correctly. I just don't understand where to put the marks for the gel electrophoresis picture

Answer 1

Oh god. I was horrible at this in Biology last year. last thing I learned and it was only reviewed for a day. I can't help you; sadly.

Answer 2

That's alright. THanks though!

Answer 3

Right ^^^

Answer 4

you know that Ddel cuts normal DNA but not mutant (i.e. mutant will be a longer strand). you also know that the gel separates strand by size, where a longer strand migrates shorter distance under the electric field (this is because the charge is uniform through out the strand).