Respuesta :
Answer:
When minute samples of DNA need to be genetically analyzed for identification purposes, which test can be effectively used? Fluorescent dye can be used as a label to trace antibody-antigen reactions in an ELISA assay
DNA is the genetic material that is the unit of inheritance. Small DNA samples can be increased in amount by the technique called PCR. Thus, option D is correct.
What is PCR?
Polymerase chain reaction (PCR) is the technique used in biotechnology to quantitatively increase the amount of genetic material. It has been known to create billions and millions of copies of the sample.
The small DNA sample can be amplified by the process of PCR which involves the production of the DNA sample by the polymerase and primers to add the bases to the strand.
The DNA undergoes thermal cycling where the temperature of the system first increases in denaturation followed by a drop in temperature in annealing and lastly again a rise of temperature in extension.
Therefore, the PCR technique can increase the amount of small DNA samples.
Learn more about PCR here:
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Your question is incomplete, but most probably your full question was, When minute samples of DNA need to be genetically analyzed for identification purposes, which test can be effectively used?
A. direct fluorescence antibody
B. Widal
C. Weil-Felix reaction
D. PCR
E. direct antigen reaction
