What is Cas9 protein that is often mentioned in news?

What is Cas9 protein that is often mentioned in news?

[UPSC Civil Services Exam – 2019 Prelims]

(a) A molecular scissors used in targeted gene editing

(b) A biosensor used in the accurate detection of pathogens in patients

(c) A gene that makes plants pest-resistant

(d) A herbicidal substance synthesized in genetically modified crops

Answer: (a)

Explanation:

CRISPR technology refers to a gene-editing technique that can modify genetic expression.
This method involves using the Cas9 protein as molecular scissors in targeted DNA after scanning the genome for the correct location through Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR).
Cas9 is an enzyme that can cut both strands of the DNA double helix at specific sites in the genome.
It is a bacterial RNA-guided endonuclease that uses RNA base pairing to locate and cleave targeted DNA.

Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

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Consider the following statements: The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:

Consider the following statements: The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void? [UPSC

The Ninth Schedule was introduced in the Constitution of India during the prime ministership of

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Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

The Ninth Schedule was introduced in the Constitution of India during the prime ministership of

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Categories

Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

The provisions in Fifth Schedule and Sixth Schedule in the Constitution of India are made in order to

Under which Schedule of the Constitution of India can the transfer of tribal land to private parties for mining be declared null and void?

The Ninth Schedule was introduced in the Constitution of India during the prime ministership of

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Download Neyyar App

Download
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