Suppose a long sequence of DNA is cut with four different restriction enzymes.Which restriction enzyme should produce the fewest fragments?
A) One that cuts at the sequence GACT
B) One that cuts at the sequence GCCTCT
C) One that cuts at the sequence AGTTCTAT
D) One that cuts at the sequence CAGTTCTATG
E) All of these enzymes would produce roughly the same number of fragments.

Question

Quizplus · Accepted Answer

The restriction enzyme that cuts at the sequence CAGTTCTATG should produce the fewest fragments as it recognizes a longer and more specific sequence compared to the others. The longer and more specific the recognition sequence of a restriction enzyme, the fewer times it will cut the DNA sequence, resulting in fewer fragments.

Suppose a Long Sequence of DNA Is Cut with Four