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Binding of specific protein on regulator...

Binding of specific protein on regulatory DNA sequence can be studied by means of

A

ultra centrifugation

B

electron microscope

C

light microscope

D

X-rays crystallography

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**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks how to study the binding of a specific protein to regulatory DNA sequences. This involves techniques that can provide detailed information about molecular interactions. 2. **Evaluating Techniques**: - **Ultracentrifugation**: This technique is primarily used for separating substances based on their density and does not provide information on molecular binding. - **Electron Microscope**: This tool is useful for visualizing the internal structures of cells and organelles but does not provide specific information about protein-DNA interactions. - **Light Microscope**: Similar to the electron microscope, the light microscope is also used for observing cellular structures and cannot specifically identify protein binding to DNA. - **X-ray Crystallography**: This technique is designed to study the structural details of crystallizable proteins and nucleic acids. It works by analyzing the diffraction patterns produced when X-rays are directed at a crystal of the substance being studied. 3. **Conclusion**: Given the analysis of the techniques, X-ray crystallography is the most suitable method for studying the binding of specific proteins to regulatory DNA sequences. It allows researchers to visualize the interaction at a molecular level by examining the unique diffraction patterns produced by the binding of proteins to DNA. **Final Answer**: The binding of specific protein on regulatory DNA sequence can be studied by means of **X-ray crystallography**. ---
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks how to study the binding of a specific protein to regulatory DNA sequences. This involves techniques that can provide detailed information about molecular interactions. 2. **Evaluating Techniques**: - **Ultracentrifugation**: This technique is primarily used for separating substances based on their density and does not provide information on molecular binding. - **Electron Microscope**: This tool is useful for visualizing the internal structures of cells and organelles but does not provide specific information about protein-DNA interactions. - **Light Microscope**: Similar to the electron microscope, the light microscope is also used for observing cellular structures and cannot specifically identify protein binding to DNA. ...
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