What is a dna probe?

A DNA probe is a short, single-stranded DNA molecule that is designed to bind to a specific target DNA sequence. It can be synthesized chemically or enzymatically and labeled with a detectable molecule, such as a fluorescent dye or radioactive isotope. DNA probes are used in a variety of applications, including DNA sequencing, gene expression analysis, and disease diagnostics. They work by hybridizing, or binding, to a complementary target sequence in the DNA sample, allowing for the detection and analysis of specific DNA sequences. DNA probes have revolutionized molecular biology and have become an essential tool in many research and clinical settings.