BIo 3.3.1- INTERPRET how dna is used for comparison and IDENTIFICATION of organisms
DNA fingerprinting is used in the identification of organisms. Gel electrophoresis is the technique used to separate and analyze DNA, RNA, and protein molecules based on their size. This process separates the molecules by sending an electrical charge through the gel. The electrical charge separates each of the molecules by size; the smaller particles move easier through the substance than larger ones. The double-stranded DNA fragments are then introduced to a blotting technique that separates them into single strands of DNA onto a nylon sheet. After that, the DNA strands are exposed to synthetic pieces of radioactive DNA, or DNA probes. Lastly, an X-Ray film is exposed to the DNA strands which will show up in places where the radioactive probes are present.
There are many uses for DNA fingerprinting and not all are used for identifying criminals at a crime scene. It can be used in a maternity and paternity tests and it can be used as a system of personal identification as well as used in the medical field for identifying and curing genetic diseases.
There are many uses for DNA fingerprinting and not all are used for identifying criminals at a crime scene. It can be used in a maternity and paternity tests and it can be used as a system of personal identification as well as used in the medical field for identifying and curing genetic diseases.
DNA Fingerprinting Lab
Try the free online interactive game where you can experiment with DNA fingerprinting and gel electrophoresis!
Try the free online interactive game where you can experiment with DNA fingerprinting and gel electrophoresis!
Luke Davis