it's possible but keep in mind that there are 35000 genes, and so it's difficult pinpointing exactly what the nitrogenous base sequences are for each and every gene in each and every way it can be expressed.

 

i mean, who would like to even READ the letters a,c,g and t over and over again, let alone analyze them for patterns and especially let alone identifying them in a strand of dna.

Even though there are many genes, there has been significant advances to determine what is the effect of certain genes. There are many methods and approaches that are currently used to determine the use of the genes. But they can be classified into constructive and destructive. Constructive are those that engineers cells by the addition of genes into the genome to see what happens. Destructive, on the other hand knocks out a gene to see what happens to the organism.

Although the described techniques are not perfect, they do give a general idea of what a sequence does. Moreover, with the appearance of new computers and bioinformatics tools, we have been able to analyze the use of genes more quickly than ever before...