The Restriction Enzyme EcoRI Recognizes the Sequence G$AATTC

question 22

Multiple Choice

The restriction enzyme EcoRI recognizes the sequence G$AATTC. Which of the following is TRUE of DNA after it is treated with EcoRI?

• A) All of the DNA fragments will have single- stranded regions ending in AA.
• B) All of the DNA will have blunt ends.
• C) All of the DNA fragments will have single- stranded regions ending in G.
• D) All of the DNA will be circular.
• E) Some of the DNA will have single- stranded regions ending in AA and others will end in G.

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