Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
It uses a guide RNA to target specific DNA sequences.
B
It randomly inserts genetic material into any part of the genome.
C
It relies solely on chemical reactions to alter DNA.
D
It is derived from human immune responses.
Understanding the Answer
Let's break down why this is correct
Answer
CRISPR‑Cas9 works because the Cas9 protein is guided by a short RNA that matches a specific DNA sequence, so it can locate and cut exactly where you want. This programmable targeting lets the system find and cleave a precise spot in the genome. After the cut, the cell’s repair machinery can be used to delete, add, or replace the DNA at that spot. The ability to direct the cut to almost any sequence makes the technique both powerful and efficient. For instance, a researcher can design an RNA that matches a faulty gene in a cell line, cut it out, and then insert a healthy copy in its place.
Detailed Explanation
The guide RNA is a short RNA strand that matches the DNA sequence you want to edit. Other options are incorrect because Some think CRISPR randomly inserts DNA, but it actually uses the guide RNA to find a single spot; CRISPR is not just a chemical reaction; it needs the Cas9 protein, which is a molecular scissors.
Key Concepts
Gene editing
CRISPR-Cas9 mechanism
Bacterial immune systems
Topic
CRISPR-Cas9 Technology
Difficulty
easy level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1What is the primary purpose of CRISPR-Cas9 technology in the field of genetic editing?
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2
Question 2How can the CRISPR-Cas9 technology be utilized to enhance precision agriculture while also offering potential applications in medicine and biotechnology?
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3
Question 3How does CRISPR-Cas9 technology enhance precision agriculture through genetic editing?
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4
Question 4How does CRISPR-Cas9 technology specifically improve the efficiency of gene editing in organisms?
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5
Question 5Which of the following examples best illustrates the application of CRISPR-Cas9 technology in modern science?
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6
Question 6How does CRISPR-Cas9 specifically target and edit genes in an organism?
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7
Question 7CRISPR-Cas9 technology is to gene editing as a librarian is to _____?
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8
Question 8How does the CRISPR-Cas9 system achieve precise genome editing?
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9
Question 9In CRISPR-Cas9 genome editing, how does the specificity of the Cas9 protein influence the success of gene editing?
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