What is the possible effect of genetic testing?

The most used method of genetic testing is to determine the presence of specific genes. This can be done to see if someone is related or if someone may have a particular trait (typically harmful) such as markers for cancer susceptibility.

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.