The CRISPR Mechanism Helps Bacterial Cells Defend Themselves Against Foreign

question 21

Multiple Choice

The CRISPR mechanism helps bacterial cells defend themselves against foreign DNA. Put the following CRISPR events in order, from first to last.
-3

• A) Foreign DNA enters cell for first time
• B) Protospacers are generated by Cas
• C) Foreign DNA is incorporated into CRISPR array
• D) CRISPR sequence is transcribed
• E) CRISPR RNA is fragmented
• F) sRNA targets foreign DNA for destruction

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Definitions:

Zero-Argument Constructor

A zero-argument constructor is a type of constructor method in object-oriented programming that does not take any parameters, used to create objects with default settings or values.

GetMessage

A method typically found in exception handling that returns the detail message string of the thrown exception.

Zero-Argument Constructor

A constructor method in a class that does not require any parameters to create an instance of the class.

GetMessage

A function or method in many event-driven interfaces that retrieves messages or events from the event queue for the application to process.