With reference to CRISPR cas9 consider the following statements 1 It is a technique that a...........

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With reference to CRISPR-cas9, consider the following statements

1. It is a technique that allows for rapid modification of DNA in a genome.

2. CRISPR-Cas9 is a system used by bacterial cells to recognise and destroy viral DNA as a form of adaptive immunity.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Both 1 and 2

It is a technique that allows for the rapid modification of DNA in a genome: This statement is correct. CRISPR-Cas9 is a revolutionary genome editing technique that enables the precise modification of DNA in a genome. It allows for the addition, deletion, or replacement of specific DNA sequences.

CRISPR-Cas9 is a system used by bacterial cells to recognize and destroy viral DNA as a form of adaptive immunity: This statement is correct. CRISPR-Cas9 is derived from a natural defense mechanism in bacteria and archaea. It is a system that allows these microorganisms to recognize and defend against invading viruses by storing a small piece of the viral DNA (or RNA) in their own genome, which can be used to recognize and destroy the viral DNA upon future encounters.