REGISTERED NURSE ASSISTANT AT SURGERY – CERTIFIED
(RNAS-C) | QUESTIONS & ANSWERS | NEW 2026/2027 UPDATE |
GRADED A+| 100% CORRECT (VERIFIED SOLUTIONS)
Which of the following is NOT a process by which RNA tumor viruses transform cells?
a. Trans-activation of a viral recessive oncogene by a cellular regulatory protein
b. Activation of a dominant cellular oncogene by a viral transcriptional activator (enhancer insertion)
many thousand base pairs away
c. Activation of a viral oncogene by a transducing retrovirus
d. Cis-activation of local cellular oncogene by a viral promoter insertion -
CORRECT|ANSWER
a. Trans-activation of a viral recessive oncogene by a cellular regulatory protein
Which of the following types of oncogenes are NOT found in the transforming retroviruses?
a. Environmental detectors proteins
b. All of the others are oncogenes found in transforming retroviruses
c. Membrane growth factor receptors
d. Signaling protein kinases
e. Cell cycle G1-S phase restriction point check proteins -
CORRECT|ANSWER
e. Cell cycle G1-S phase restriction point check proteins
,Mutations in which of the following pathway may be "one" of the contributing factors for the
development of cancer?
a. Pathways in determining cell fate
b. Mutations in all of the other pathways mentioned can be a contributing factor in cancer
c. Cell survival pathway
d. Pathways to maintain of genome integrity
e. Cell proliferation pathway -
CORRECT|ANSWER
b. Mutations in all of the other pathways mentioned can be a contributing factor in cancer
Which of the following is the process is used by DNA tumor viruses to transform cells?
a. DNA tumor viruses inactivate p53 for unscheduled DNA synthesis
b. DNA tumor virus T antigen binds to a G1 restriction point protein allowing transcription of the
genes required for DNA synthesis
c. All of the other are processes are used by the DNA tumor viruses to transform cells
d. DNA tumor virus tumor antigens push the quiescent cells into S phase -
CORRECT|ANSWER
c. All of the other are processes are used by the DNA tumor viruses to transform cells
Which of the following is NOT a property of primary cells in culture?
a. Need growth factors in the form of serum
, b. Anchorage dependent
c. Will not grow if in contact with a neighboring cell
d. Grow at least up to 300-500 passages/splits then die
e. Will not grow in a semi-solid media -
CORRECT|ANSWER
d. Grow at least up to 300-500 passages/splits then die
Which of the following agents may NOT cause cancer?
a. Recombinant retroviruses with a recessive oncogenes
b. DNA damaging radiations
c. Environmental carcinogens
d. Strong tropical sunlight -
CORRECT|ANSWER
a. Recombinant retroviruses with a recessive oncogenes
Which of the following process is NOT used by DNA tumor viruses to transform cells?
a. DNA tumor viruses activate p53 for scheduled DNA synthesis
b. DNA tumor viruses kick the quiescent cells into the G2 phase to allow cell division
c. None of the above/other processes are used by DNA tumor viruses to transform cells
d. DNA tumor viruses push the cells through the G2 restriction point -
(RNAS-C) | QUESTIONS & ANSWERS | NEW 2026/2027 UPDATE |
GRADED A+| 100% CORRECT (VERIFIED SOLUTIONS)
Which of the following is NOT a process by which RNA tumor viruses transform cells?
a. Trans-activation of a viral recessive oncogene by a cellular regulatory protein
b. Activation of a dominant cellular oncogene by a viral transcriptional activator (enhancer insertion)
many thousand base pairs away
c. Activation of a viral oncogene by a transducing retrovirus
d. Cis-activation of local cellular oncogene by a viral promoter insertion -
CORRECT|ANSWER
a. Trans-activation of a viral recessive oncogene by a cellular regulatory protein
Which of the following types of oncogenes are NOT found in the transforming retroviruses?
a. Environmental detectors proteins
b. All of the others are oncogenes found in transforming retroviruses
c. Membrane growth factor receptors
d. Signaling protein kinases
e. Cell cycle G1-S phase restriction point check proteins -
CORRECT|ANSWER
e. Cell cycle G1-S phase restriction point check proteins
,Mutations in which of the following pathway may be "one" of the contributing factors for the
development of cancer?
a. Pathways in determining cell fate
b. Mutations in all of the other pathways mentioned can be a contributing factor in cancer
c. Cell survival pathway
d. Pathways to maintain of genome integrity
e. Cell proliferation pathway -
CORRECT|ANSWER
b. Mutations in all of the other pathways mentioned can be a contributing factor in cancer
Which of the following is the process is used by DNA tumor viruses to transform cells?
a. DNA tumor viruses inactivate p53 for unscheduled DNA synthesis
b. DNA tumor virus T antigen binds to a G1 restriction point protein allowing transcription of the
genes required for DNA synthesis
c. All of the other are processes are used by the DNA tumor viruses to transform cells
d. DNA tumor virus tumor antigens push the quiescent cells into S phase -
CORRECT|ANSWER
c. All of the other are processes are used by the DNA tumor viruses to transform cells
Which of the following is NOT a property of primary cells in culture?
a. Need growth factors in the form of serum
, b. Anchorage dependent
c. Will not grow if in contact with a neighboring cell
d. Grow at least up to 300-500 passages/splits then die
e. Will not grow in a semi-solid media -
CORRECT|ANSWER
d. Grow at least up to 300-500 passages/splits then die
Which of the following agents may NOT cause cancer?
a. Recombinant retroviruses with a recessive oncogenes
b. DNA damaging radiations
c. Environmental carcinogens
d. Strong tropical sunlight -
CORRECT|ANSWER
a. Recombinant retroviruses with a recessive oncogenes
Which of the following process is NOT used by DNA tumor viruses to transform cells?
a. DNA tumor viruses activate p53 for scheduled DNA synthesis
b. DNA tumor viruses kick the quiescent cells into the G2 phase to allow cell division
c. None of the above/other processes are used by DNA tumor viruses to transform cells
d. DNA tumor viruses push the cells through the G2 restriction point -
