oncogenesis/signaling Flashcards

1
Q

phosphorylation of PRB results to

A

cell cycle progression

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2
Q

provides the pivotal decisional checkpoint in the fate of the stimulus

A

BCL-2

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3
Q

Apoptotic pathway important after chemotherapy

A

p53-modified

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4
Q

the activity of this Cyclin complex results to chromosome condensation

A

cyclin D/cdk-1

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5
Q

true to molecular carcinogenesis

A

there is loss in function of oncogene

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6
Q

viral oncoprotein which facilitates degradation of p53

A

E6

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7
Q

true or false. APC in familial Adenomatous polyposis is an example of oncogene

A

True

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8
Q

true or false. gene amplification and formation of double minutes is an example

A

True

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9
Q

an adaptor protein which facilitates hydrolysis of GDP to GTP to form the active GTP-Rau complex in the RTX pathway

A

GEF

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10
Q

a second messenger which activates Kinase C Downstream in inositol phospholipid

A

DAG

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11
Q

which component of the RTK pathway functions as guanine exchange factor (GEF)

A

Sos

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12
Q

true or false. the endpoint of GPCR is increased concentration of second messengers

A

True

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13
Q

is the G protein involved in phospholipid signaling pathway Trimeric

A

yes

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14
Q

does Ras transiocates to the nucleus

A

noo

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15
Q

this enzyme activates production of IP3

A

Kinase C

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16
Q

a protein kinase which directly activates MAP kinase in the MAP kinase pathway

17
Q

this links cAMP to transcription in the nucleus

18
Q

what activates the CYCLIN/CDK

19
Q

is G1/S cell cycle checkpoint regulated mainly by intracellular signals

20
Q

true or false. in knudson’s 2 hit hypothesis. the second hit is gross chromosomal loss

21
Q

when RRB is inhibited, PRB is

A

in the phosphorylated state

22
Q

provides the pivotal decisional checkpoint in the fate of the cell after a death stimulus

23
Q

apoptotic pathway important after chemotherapy and radiation

A

p35-mediated

24
Q

the activity of this cyclin complex results to chromosome condensation

A

cyclin B/cbk1

25
the single most common genetic change in human neoplasia involves
p53
26
viral oncoprotein which facilitates degrdation of
E6
27
the enzyme which activates production of P37
phospholipase C
28
which cdk-inhibitor is being activated by p53
mutator gene
29
mutation in which gene family may lead to formation of micro organelle insolubility
tumor suppressor gene
30
viral oncoprotein that inhibits pRB
p21
31
stage in chemical carcinogenesis which is organelle and reversable
promotion
32
tax protein is responsible for the oncogenic effect of which virus
hepatitis b
33
philadelphia chromosome in cml is due to
fusion of bcr-abl
34
stage of carcinogen
initiation