Programmed Cell Death,or Apoptosis,is a Necessary and Useful Property of Cells.Why

Q22: v-onc genes are found in<br>A)vital cells.<br>B)viral cells.<br>C)cancer-causing

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

Q28: When oncologists (scientists who study cancer)refer to

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