SNPs ( Single Nucleotide Polymorphism)
 
Introduction:  DNA is a double helical structure (  looks like a ladder )that composed of a pair of nucleotide  base that lie perpendicular to the  parallel double  strand. The nucleotide  bases may be either  a Purine (Adenine 'A' /Guanine 'G') or Pyrimidine  (Thymine 'T' /Cytosine 'C') .  These  nucleotides form the base for gene code and DNA sequence. They varies from organisms  to organisms that makes the individual unique.    SNPs : Sometimes during the process of copying of sequence  from parents  to the progeny a typo error  may occur in a single  nucleotide  sequence  at a particular  position  know as SNP or snips .  It is the single nucleotide  mutation  that occurs  at the specific  position  in the genome  of the individual that causes major variation among the individuals at a frequency  of >1% in the population .  All the ...
 
 
