Concept explainers
To write:
The benefits of DNA microarray over genetic markers.
Introduction:
Lately, the diseases related to faulty genes have been on a rise. This is seen not only in congenital diseases but cancer too. Thus many procedures have been developed to screen these like DNA microarray, genetic markers and more.
Explanation of Solution
When genetic markers are used for genetic testing, certain types of
In DNA microarray, the complete genome can be tested at ones. The DNA is labeled with fluorescent dyes and put onto the microarray plate which contains allele for mutations. If mutations are present in the genome, the part will bind to the plate and emit fluorescence. Thus, the disease(s) are screened. Herein, multiple diseases can be screened at ones and does not have to be amplified.
Thus, DNA microarray screens for many diseases at ones unlike genetic markers and also takes lesser time. Moreover, the complete DNA microarray procedure is automated, so the chances of human error are minimal.
DNA microarrays are faster and more efficient than genetic markers as they test for multiple diseases at ones and is completely automated.
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