Sequences of DNA can be removed from a genome with the help of

Options

A. Molecular glue
B. Molecular scissors
C. Ligases
D. Nucleases

Answer

To solve the question "Sequences of DNA can be removed from a genome with the help of," we need to identify the correct tool or method used for this process. Here’s a step-by-step breakdown of the solution:

### Step 1: Understanding the Question
The question asks about the method or tool used to remove DNA sequences from a genome. This implies we are looking for a molecular technique or enzyme that can cut DNA.

**Hint:** Think about the tools used in genetic engineering or molecular biology that can manipulate DNA.

### Step 2: Identifying the Tool
The tool that is commonly used to cut DNA at specific locations is known as "restriction endonucleases." These enzymes act like molecular scissors that can cleave DNA at specific sites.

**Hint:** Consider the terminology used in molecular biology for enzymes that cut DNA.

### Step 3: Function of Restriction Endonucleases
Restriction endonucleases recognize specific sequences of DNA, known as restriction sites, and cut the DNA at these sites. This allows for the removal of specific DNA sequences from the genome.

**Hint:** Recall how these enzymes work and what they target in the DNA structure.

### Step 4: Understanding Palindromic Sequences
Many restriction endonucleases recognize palindromic sequences, which are sequences that read the same forwards and backwards on complementary strands. This property is crucial for the action of these enzymes.

**Hint:** Think about the structure of DNA and how certain sequences can be symmetrical.

### Step 5: Conclusion
Based on the information gathered, we conclude that the correct answer to the question is "molecular scissors," which refers to restriction endonucleases.

**Final Answer:** The sequences of DNA can be removed from a genome with the help of molecular scissors (restriction endonucleases).

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