The cell receives these messages and starts producing the proteins to, say, make your black hair grow. If you took some letters and jumbled them together, most of the resulting sequence would be rubbish. A mere 0.1 per cent difference in individuals' genomes is what makes us individuals, why we have varied appearences and different traits. If the mutation does not change the instructions in the gene then its called polymorphism. The small but unique differences in our genomes is what is used to tell us apart during DNA fingerprinting.
Scientists believe that there is a genetic basis for intelligence.
After that, it seemed smarter than its contemporaries. Between half and 85 per cent of women with the BRCA genes will develop cancer. Scientists may have found a third breast cancer gene in chromosome 13. In each cell, there are several tiny rod-shaped organisms called mitochondria. They are basically the cell's batteries.