A DNA fingerprint is a pattern of dark bands on photographic film that is made when the DNA fragments are separated by gel electrophoresis and tagged.
What is a DNA fingerprint?
A DNA fingerprint is a unique pattern of DNA fragments that is used to identify an individual. It is created by analyzing specific regions of a person's DNA that are known to vary significantly from person to person. DNA fingerprints are used in a variety of legal and medical contexts, such as paternity testing and criminal investigations.
What is Gel electrophoresis?
Gel electrophoresis is a technique used to separate and analyze macromolecules such as DNA and proteins. During this process, a gel made of agarose or a similar substance is used as a support medium. An electric current is then applied, causing the molecules to move through the gel in a process known as electrophoresis. The molecules are separated based on their size, shape, and charge, resulting in distinct bands that can be visualized using a variety of methods.
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