Answer the following questions from the diagram given below:-

The samples in different lanes are from different sources but treated with a common restriction endonuclease. The maximum number of restriction sites are present in
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Sample 4
The same restriction enzyme was used on all samples. The sample cut at the most sites gives the most fragments, that is, the most bands. Lane 4 has the most bands.
Option (1) Sample 4 — Correct. One restriction enzyme cuts a DNA at each of its recognition sites, so more sites give more fragments, seen as more bands. Sample 4 shows the most bands, so it has the maximum number of restriction sites.