The study of genes related to breast cancer contributes very less to predict about the development of a tumor, shared the researchers on Wednesday.

Though, the study overlooked the BRCA-1 and BRCA-2 breast cancer genes which are already used to judge cancer risk. The 10 mutations were found in about 20-40% of the population. Often known as single-nucleotide polymorphisms or "SNPs", they are single-letter changes in the genetic code.

The cases of about 11,588 women aging from 50 to 79(half of them suffered from breast cancer) were studied and it was discovered that testing for the mutations was a little better than making assessment of traditional risk factors.

Peter Devilee of Leiden University Medical Center and Matti Rookus of the Netherlands Cancer Institute opine that the 10 breast cancer genes which are used in the test give the least clue to predict about getting afflicted with cancer.

They said, "For women seeking advice on their personal risk of breast cancer, it is obviously too early to incorporate SNP testing into a counseling procedure, although such tests are already advertised for this purpose on the Internet".