Will certain bands only be present in fruits rather than vegetables?
What I am trying to ask is how should I try to observe the differences between fruits and vegetables?
Its all you can do: use the RE and then watch what it gives on the gel.
I have never done this before, so not sure what to expect.
But indeed: the more the DNA is different, the more difference you will see in the bands...
Just test a few different kinds of fruits and test some vegetables, put them on gel (more then 1 sample per fruit/vege) and check the differences.
Check fruits vs fruits and fruits vs vegetables and vegetables vs vegetables
Also: be sure to test the tomato.. (look up: Nix v. Hedden) and see for yourself whether the court was right or not...
(be sure to try to find a definition on what a fruit or vegetable is..)
(==> also starting from this "definition" you should be able to find out whether there would be a big difference or not and what might be the cause of this difference on DNA level..)