Answer:
the broadest is domain ,kingdom ,phylum, class, order, family, genus and then species is the most specific
True, DNA is DNA, it matters not wether or not it belongs to a plant, you could mix a carrot with a pig (not sure why you would, but you can)
Breaking cells open to release the DNA.
Separating DNA from proteins and other cellular debris.
Precipitating the DNA with an alcohol.
Cleaning the DNA.
Confirming the presence and quality of the DNA.
