What is the process of electroporation used for?

• A. To induce mutations in bacteria
• B. To create microscopic pores in cells for DNA entry
• C. To separate DNA fragments by size
• D. To organize genomic libraries

Answer: (B)

Electroporation is a technique that utilizes an electric field to create temporary pores in the cell membrane. This is significant because it allows for the introduction of various biomolecules, particularly DNA, into the cells. When the electric field is applied, the increase in permeability of the cell membrane facilitates the uptake of nucleic acids, which can be crucial for genetic transformation or transfection processes in both prokaryotic and eukaryotic cells.

This method has applications in molecular biology and genetic engineering, particularly in cloning, gene expression studies, and the development of genetically modified organisms. By allowing DNA to enter cells that might otherwise be impermeable to it, electroporation enhances the efficiency of genetic manipulation techniques.

While other processes in the list have their own distinct purposes—such as mutation induction, DNA fragment separation, and genomic library organization—they do not relate to the specific function of electroporation, which is primarily about enabling the entrance of DNA into cells.