Multiple Choice
The protein encoded by the PTEN gene acts as a tumor suppressor by
A) phosphorylating p53 and increasing its proapoptotic activity.
B) antagonizing CDK4, 6/cyclin D activity to activate the G1 cell cycle restriction point.
C) dephosphorylating phosphatidylinositol 3,4,5-bisphosphate, thus antagonizing PI 3 kinase/Akt activity.
D) increasing expression of BRCA1 to protect cells against DNA damage.
Correct Answer:
Verified
Correct Answer:
Verified
Q10: Explain the conditions in which the following
Q11: The RNA viruses that most commonly pick
Q12: The first tumor suppressor gene was identified
Q13: p53 induces apoptosis by<br>A) inactivating a growth
Q14: Ultraviolet radiation increases the likelihood of a
Q16: Viruses do not induce tumors in humans.
Q17: What is the likely reason that antiangiogenic
Q18: The translocation that places the transcription factor
Q19: In some cases, tumors support their unrestricted
Q20: Which characteristic is commonly the same in