If DNA had 5 different bases, a restriction enzyme with a 4-base recognition sequence would predicted to digest the DNA approximately every
A)125 bp.
B)256 bp.
C)425 bp.
D)625 bp.
E)1056 bp.

Question

Quizplus · Accepted Answer

A four-base recognition sequence means that the enzyme would recognize and cut at every possible combination of those four bases. With 5 different bases, there would be a total of 5^4 = 625 possible recognition sites. Therefore, the DNA would be predicted to be digested approximately every 625 base pairs.

If DNA Had 5 Different Bases, a Restriction Enzyme with a 4-Base