Biology I Need Help Answering These From My Exam :/?

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Viruses whose cores are oncogenes
may prevent tumors from forming.
may immunize people against lung cancer from smoking.
are called proto-oncogenes.
may infect healthy tissue and cause tumors to form.



Match the item in the left column with the appropriate item in the right column.
Carcinoma A. Bone And Muscle
Sarcoma B. Blodd,
Lymphoma C.Skin And Connective Tissue
Leukemia D.Blood Producing Tiss.





Cancers are most likely to form when mutations occur in
growth factor genes.
mutagens.
sex chromosomes.
somatic chromosomes.




The term for when dividing cancer cells migrate and begin growing in other sites is
metastasis.
benign tumor.
homeobox.
Drosophila.





A predisposition for cancer may be caused by
gender.
mutations in tumor-suppressor genes.
bacterial infections.
alcohol consumption.




Tumors in blood-producing tissue produces
carcinoma.
sarcoma.
carcinogens.
leukemia.




Morphogenesis is controlled by
homeoboxes.
oncogenes.
tumor-suppressor genes.
metastasis.




If a person was lacking an arm at birth, there was probably a mutation in a
sex chromosome.
homeotic gene.
carcinoma.
metastasis.




Which of the following statements is NOT true about cancer?
There is a genetic predisposition for many cancers.
There is usually more than one mutation needed to produce a cancer.
The incidence of cancer shows no correlation with smoking.
Cancer is more prevalent in older people.
 
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