Sir John Bell, government adviser on genetics and professor of medical sciences at Oxford University, said genetics can deliver medicines to patients and help understand cancer.
He said: “There are some people who have a genetic predisposition to cancer, they tend to be relatively rare.
"There are a number of cancers – quite rare – where there is a predictability issue. At the moment we are not very good at identifying those."
Once you have a cancer, its major drivers of behaviour are genetic. An understanding of the genetics of the cancer itself turn out to be crucial for understanding what is going to happen to you with that cancer, and choosing the therapies you can most effectively use.
More top news
The Indonesian police plane dropped out of contact and villagers have 'found police uniforms' in the sea.
The Post Office said it was 'business as usual' but unions said Saturday's industrial action was getting solid support.
A former German prisoner of war has left nearly £400,000 to a small Scottish village for the kindness shown to him during his captivity.