Shared Flashcard Set

Details

Molecular Biology Chapter 24
Cancer
21
Biology
Graduate
12/13/2012

Additional Biology Flashcards

 


 

Cards

Term
Which of the following is characteristic of malignant tumors?
Definition
metastatic
Term
Gain-of-function mutations in which of the following genes typify colorectal carcinomas?
Definition
K-Ras
Term
During metastasis cells may undergo an epithelial-to-mesenchymal transition whereby there is a(n)
Definition
Loss of cell-cell adhesion
Term
Which of the following promotes angiogenesis?
Definition
VEGF
Term
In females, all the cells in a tumor have the same inactive X chromosome. The reason for this is that
Definition
all of the cells in a tumor are derived from a single progenitor cell.
Term
Which of the following is a tumor-suppressor gene?
Definition
APC and RB
Term
Which of the following is a proto-oncogene?
Definition
myc
Term
Germ-line mutations in which of the following has/have been implicated in hereditary cancers?
Definition
BRCA1 and RB
Term
Hereditary cancers typically possess loss-of-heterozygosity in
Definition
tumor-suppressor genes.
Term
Ras is a
Definition
none of the above
Term
SRC is a
Definition
kinase
Term
A loss-of-function mutation in which of the following would have the same effect as a gain-of-function mutation in Ras?
Definition
NF1
Term
Burkitt's lymphoma results from the overproduction of
Definition
Myc
Term
Which of the following proteins belong to the control system that regulates cells past a certain point in late G1 (START)?
Definition
Rb and CDK4
Term
A gain-of-function mutation in which of the following will bypass restriction point controls?
Definition
cyclin D
Term
The human papillomavirus E7 protein inhibits the function of
Definition
Rb
Term
Micro-RNAs are a new class of oncogenic factors because they function
Definition
tumor supressors and oncogenes
Term
Direct-acting carcinogens are those that
Definition
are mainly reactive electrophiles.
Term
Telomerase
Definition
contains reverse transcriptase.
Term
Exposure to benzo(a)pyrene is most frequently associated with which type of cancer?
Definition
Lung Cancer
Term
The first line of defense against point mutations is
Definition
DNA polymerase.
Supporting users have an ad free experience!