A student added an enzyme to a test tube containing a sample of DNA. after a period of time, analysis of the DNA sample indicated it was now broken into three segments. the purpose of the enzyme was most likely to

Based on the observance of DNA, now appearing as 3 segments, the purpose of the enzyme was most likely to split and or break down, cut the DNA at appropriate sites of the respective nucleotide sequences, that the enzyme can recognize and cut, ultimately producing these 3 segments.