What is the most important message delivered by this paper? ced-1 and ced-2 affect cell death in C. elegans ced-1 and ced-2 affect engulfment of dead cells In programmed cell death, cells probably die by suicide rather than phagocytosis ced-1 and ced-2 are different genes that affect dead cell engulfment None of the above

nuc-1 is a gene That is important for killing the cells That is important for degrading DNA from apoptotic cells and ingested bacteria That is important for degrading DNA from apoptotic cells That is important for cell corpse engulfment None of the above

The fact that cells in the ced-1(-/-) mutant die at normal times suggests cells do not die by phagocytosis Phagocytosis is dispensable for cell killing ced-1 does not control the timing of cell death ced-1 does not change the cell fate All of the above

The dot indicated by the arrowhead in Fig. 3 upper right is an 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 are the same gene act in the same pathway both promote cell killing both promote degradation of DNA in dying cells None of the above

Based on the paper, ced-1 and ced-2 are also involved in other forms of cell death act downstream of the nuc-1 gene act upstream of the nuc-1 gene mediate the increase in refractility of dying cells None of the above