Washington D.C, Nov. 21 -- : The researchers at the QIMR Berghofer have shown that there are 22 different genes that help to determine how much a person should be exposed to the sun before developing melanoma.

The study was published in the journal, 'British Journal of Dermatology.'

People who are at high genetic risk, sun exposure in childhood is a strong contributing factor while people at low genetic risk develop melanoma only after a lifetime of exposure to sunlight.

Australia has the highest rates of skin cancer in the world. Every year more than 12,000 Australians are diagnosed with invasive melanoma, which is the most deadly form of the disease.

Lead researcher Professor David Whiteman at QIMR Berghofer Medical Research Institute...