THE MOLECULAR BASIS OF INHERITANCE
VIRUSES AND PRIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Promote activation of host’s oncogene
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Infect a cell and replicate exponentially
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interfere with tumor repression
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change the protein spikes of the host cell
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Detailed explanation-1: -Viruses can lead to cancer by associating with host proteins, proliferating when the human immune system is weakened, and hijacking proliferating human cells. Compared to other viruses, human tumor viruses are unusual because they infect, but do not kill, their host cells.
Detailed explanation-2: -Epstein-Barr virus, human papilloma virus, hepatitis B virus, and human herpes virus-8 are the four DNA viruses that are capable of causing the development of human cancers. Human T lymphotrophic virus type 1 and hepatitis C viruses are the two RNA viruses that contribute to human cancers.
Detailed explanation-3: -Certain infectious agents, including viruses, bacteria, and parasites, can cause cancer or increase the risk that cancer will form. Some viruses can disrupt signaling that normally keeps cell growth and proliferation in check.