When Oncologists (Scientists Who Study Cancer)refer to "Transformation," They Mean

Q23: Small DNA tumor viruses such as SV40

Q24: In retroviruses,the pol gene product is a(n)<br>A)DNA

Q25: _ play a pivotal role in programmed

Q26: List the ways in which proto-oncogenes may

Q27: Programmed cell death,or apoptosis,is a necessary and

Q29: The only genes necessary for the retroviral

Q30: Metastatic cancer is<br>A)terminally differentiated.<br>B)malignant.<br>C)invasive.<br>D)B and C only<br>E)A,B,and

Q31: BRCA1 is a gene involved in repair

Q32: Describe Knudson's two-mutation model: When and where

Q33: In sporadic (nonhereditary)cancers,mutations occur in _ cells.<br>A)germ<br>B)somatic<br>C)undifferentiated<br>D)mammary<br>E)T