What is the most important message
delivered by this paper?
A. ced-1 and ced-2 affect cell death in C. elegans
B. ced-1 and ced-2 affect engulfment of dead cells
C. In programmed cell death, cells probably die by
suicide rather than phagocytosis
D. ced-1 and ced-2 are different genes affect dead
cell engulfment
E. None of the above
nuc-1 is a gene
A. That is important for killing the cells
B. That is important for degrading DNA from
apoptotic cells and ingested bacteria
C. That is important for degrading DNA from
apoptotic cells
D. That is important for cell corpse engulfment
E. None of the above
That fact that cells in the ced-1(-/-)
mutant die at normal times suggests
A. cells do not die by phagocytosis
B. Phagocytosis is dispensable for cell
killing
C. ced-1 does not control the timing of
cell death
D. All of the above
The dot indicated by the arrow in Fig. 3
upper right is
A.
B.
C.
D.
E.
Apoptotic cell by itself
A non-apoptotic cell
Apoptotic cell debris inside an engulfing cell
An engulfing cell
None of the above
ced-1 and ced-2
A.
B.
C.
D.
are the same gene
act in the same pathway
both promote cell killing
both promote degradation of DNA in dying
cells
E. None of the above