![]() ![]() Genes that help cells grow, divide, or stay alive are called oncogenes.Some genes control when our cells grow, divide into new cells, and die at the right time: But our genes affect more than how we look. We usually look like our parents because they are the source of our DNA. DNA is the chemical in our cells that makes up our genes, which control how our cells function. Still, scientists have learned that certain changes in the DNA inside normal bone marrow cells can cause them to grow out of control and become leukemia cells. ![]() ![]() Most children with leukemia do not have any known risk factors. The exact cause of most childhood leukemias is not known. ![]()
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