Asegment of dna is 400 base pairs long and contains 2 restriction sites for the restriction enzyme hindiii. this dna is cut with hindiii and then run on a gel. how many bands would you expect to see after completing dna gel electrophoresis and staining the gel?

I would expect to see 3 bands after completing DNA gel electriphoresis and staining the gel.

Explanation:

The restriction enzyme Hind3 has two Recognization sites in the 400 base pair long DNA molecule.

     As a result the restriction enzyme Hind3 with generate 2 cuts in the target 400 base pair long DNA molecule.

     The number of 2 cuts in the target DNA molecule will generate 3 DNA fragments.From this point of view it can be stated that 3 bands will form after completing DNA electrophoresis and staining the gel.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.