Technological Advances and Their Impact On Business Communication

Jun 21st, 2015
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Acadia University
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The age of electronics and more specifically, computers, has caused a tremendous paradigm shift in the way we do

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OncogeneAn oncogene is a kind of abnormal gene that predisposes cells to develop into cancers. Unlike normal genes, which can be turned off after being turned on, oncogenes are altered in a way that keeps them stuck in a state of constant activity. That uninterrupted action helps drive the uncontrolled growth that underlies tumors.Oncogenes can be turned on by inherited changes - ones that are passed down from parent to child - or by cancer-promoting agents that damage DNA throughout an individual's lifetime, such as UV light, hazardous chemicals and even viruses.Cancer arises in part through damage to normal genes (known as proto-oncogenes), which can arise from exposures to cancer-promoting agents, such as UV light. That damage permanently switches the gene on, transforming it into an oncogene that helps push cells to become cancerous.The first oncogene ever identified is called src (pronounced "sarc"). Discovered in 1970, it is a component of a cancer-causing virus in chickens, known as the Rous sarcoma virus, which induces tumors in connective tissues, such as bone and muscle, in infected animals. In humans, the SRC gene was later shown to be involved in a variety of cancers, such as colon, liver, lung, breast and pancreatic cancer.Viral oncogenesViral oncogenes are responsible for oncogenesis resulting from persistent virus infection. Although different human tumor viruses express different viral oncogenes and induce different tumors, their oncoproteins o

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