Multiple Choice
Restriction-modification systems:
A) exist in all organisms as a protection against foreign DNA invasion.
B) include a site-specific exonuclease to degrade foreign DNA.
C) modify DNA by acetylation.
D) include a DNA methylase and an endonuclease.
E) include three types of endonuclease all of which cleave within a specific DNA target sequence.
Correct Answer:
Verified
Correct Answer:
Verified
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