You are graduating from nursing school in three months and have already lined up a new job. However, your employer informs you that before you start your job, it is mandatory for you to be vaccinated against hepatitis B, a double-stranded DNA virus that can cause the disease hepatitis. Your boyfriend, a biology major, wonders why you need to get the vaccine. You aced your microbiology class and you know a lot about both viruses and vaccines, so you understand why getting this vaccination is essential. You give your boyfriend a mini lesson on this by answering a few of his questions.
-You tell your friend that you are happy to be receiving your vaccination because hepatitis B is associated with hepatocellular carcinoma (liver cancer). Select the False statement regarding viruses and cancer.
A) Viruses that lead to cancer formation are called oncogenic viruses.
B) The most common viral causes of tumors are certain DNA viruses such as hepatitis B virus.
C) Some viruses carry an oncogene-infection with these viruses interferes with the host cell's own growth-control mechanisms.
D) The majority of tumors are caused by oncogenic viruses but some may be caused by mutations in host genes that regulate cell growth.
E) Viruses that insert their genome into the host cell's chromosome may cause changes at the insertion site, converting a proto-oncogene into an oncogene.

Question

You are graduating from nursing school in three months and have already lined up a new job. However, your employer informs you that before you start your job, it is mandatory for you to be vaccinated against hepatitis B, a double-stranded DNA virus that can cause the disease hepatitis. Your boyfriend, a biology major, wonders why you need to get the vaccine. You aced your microbiology class and you know a lot about both viruses and vaccines, so you understand why getting this vaccination is essential. You give your boyfriend a mini lesson on this by answering a few of his questions.
-You tell your friend that you are happy to be receiving your vaccination because hepatitis B is associated with hepatocellular carcinoma (liver cancer). Select the False statement regarding viruses and cancer. 
A) Viruses that lead to cancer formation are called oncogenic viruses.
B) The most common viral causes of tumors are certain DNA viruses such as hepatitis B virus.
C) Some viruses carry an oncogene-infection with these viruses interferes with the host cell's own growth-control mechanisms.
D) The majority of tumors are caused by oncogenic viruses but some may be caused by mutations in host genes that regulate cell growth.
E) Viruses that insert their genome into the host cell's chromosome may cause changes at the insertion site, converting a proto-oncogene into an oncogene.

Quizplus · Accepted Answer

The statement "The majority of tumors are caused by oncogenic viruses but some may be caused by mutations in host genes that regulate cell growth" is false. In reality, the majority of tumors are not caused by oncogenic viruses, but rather by mutations in host genes that regulate cell growth. While viruses can be a contributing factor, they are not the primary driver of tumor formation.

You Are Graduating from Nursing School in Three Months and Have