DNA PROBE Meaning and
Definition
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A DNA probe refers to a short strand of DNA or RNA that is synthetically created and labeled with a specific marker, typically a fluorescent dye or a radioactive element. It is utilized in molecular biology and genetics to detect and identify the presence or absence of a specific DNA sequence or gene of interest. The process involves the hybridization of the probe to the complementary DNA or RNA sequence in a sample.
The basic principle behind a DNA probe is that the probe's sequence is designed to be complementary to the target DNA or RNA sequence. This complementary binding between the probe and the target sequence allows for specific hybridization to occur, indicating the presence of the target sequence in the sample. The labeled marker on the probe allows scientists to easily visualize and detect the presence of the target DNA or RNA.
DNA probes are widely used in various techniques, including DNA sequencing, gene mapping, and genetic testing. They are valuable tools in the field of medical diagnostics, research, and forensic analysis. By utilizing DNA probes, researchers can identify specific genes associated with diseases, determine the genetic relatedness between different individuals, and analyze genetic variation within a population.
Overall, a DNA probe is a synthetically created sequence of DNA or RNA that can bind specifically to its complementary sequence, allowing for the detection and identification of specific DNA or RNA sequences in a sample.
Common Misspellings for DNA PROBE
- sna probe
- xna probe
- cna probe
- fna probe
- ena probe
- dba probe
- dma probe
- dja probe
- dha probe
- dnz probe
- dns probe
- dnw probe
- dnq probe
- dna orobe
- dna lrobe
- dna -robe
- dna 0robe
- dna peobe
- dna pdobe
Etymology of DNA PROBE
The word "DNA probe" is derived from the combination of two terms: "DNA" and "probe".
1. DNA: DNA stands for "deoxyribonucleic acid", which is a molecule that carries the genetic instructions used in the development, functioning, and reproduction of all known living organisms. The term DNA was coined in 1944 by geneticist Oswald Avery, derived from earlier research by Friedrich Miescher who discovered a source of the material in human white blood cells.
2. Probe: The term "probe" originates from the Latin word "probare" meaning "to test or examine". In English, the word "probe" has been used since the 16th century to depict various investigative or exploratory tools.
When these two words are combined, "DNA probe" refers to a molecular tool used to examine or test for the presence of specific DNA sequences or genetic information within a given sample.
