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While looking at the basic fingerprint patterns can quickly help eliminate a suspect, in order to positively match a print found at a crime scene to an individual, more is needed. Every individual, including identical twins, has a unique fingerprint due to unique ridge patterns called:

Respuesta :

Answer:

Every individual including identical twins has a unique finger print due to the unique pattern of DNA,Called as DNA finger printing or genetic finger printing.

Explanation:

  • It is a special technique that is used to detect the unique base pair pattern of DNA.
  • It mainly recognizes the mini satellites in the genome which produce unique pattern in an individual.
  • The first step includes extraction of DNA from a sample and then it is treated with restriction enzyme that cuts the DNA into small fragments.
  • Then addition of gel electrophoresis takes place which separates the DNA according to it's length.
  • After size separation, the DNA is loaded in a well where porous gel is present at one end that acts as a sieve and electrical current is applied to it where negatively charged DNA will run through the gel.
  • The shorter DNA will move fast and then the sample is loaded on the gel
  • The DNA is then transferred to the fragile gel that produce single strand of DNA
  • Nylon membrane is then incubated with radioactive probe.
  • These probes tagged the mini stretch of DNA .

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