The genetic code in your DNA breaks down into just four basic building blocks or nucleotides represented by letters: A/adenine, T/thymine, G/guanine, C/cytosine
More than 99% of human DNA sequences are the same across human populations. The main differences occur when a single nucleotide (A,T,C,or G) in the genome sequence is altered.
These single letter changes are called single nucleotide polymorphisms or SNPs (pronounced "snips"). For example a SNP might change the DNA sequence from AAGGCTAA to ATGGCTAA.
SNP’s represent about 90% of human genetic.
A pioneer in the field of human DNA testing, Genelex provides comprehensive DNA testing services. Our DNA Drug Sensitivity Testing and GeneMedRx software have helped physicians find the right drug and dose for their pateints since 2000.
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