Why can only certain parts of dna be used as dna fingerprints? a. the parts must code for the insulin protein. b. the parts must be dna for making skin cells. c. the parts must be unique to the person. d. the parts must only contain certain bases.

Option C

Explanation:  There is only a certain of DNA that is unique in the organism. Rest of the DNA is same in all the organism.

Suppose at any crime place where there is some evidence having the DNA , this DNA sequence is matched with the DNA sequence of the criminal. This of the DNA is used in the DNA fingerprints to detect the person having the same DNA sequence. The matched sequence of DNA will be of criminal.

So, this is how the DNA fingerprints can be used in many cases as it is unique in the organisms.

it creates acid rain

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: