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Unformatted text preview: (i.e. green fluorescent protein)
d) none of the above
e) all of the above
3. Bacterial heterocyst formation is considered a development process because…
a) heterocysts carry out different functions than the vegetative cells
b) heterocysts have a different cellular structure than vegetative cells
c) heterocysts have a different function and structure than vegetative cells
4. Do you predict cell to cell signaling to occur between a developing heterocyst cells and
vegetative cells and why? 5. In a screen for genes that affect heterocyst formation by Anabena, you isolate a plasmid that
encodes the Anabena gene, hetR. This plasmid, when present in multiple copies in Anabena,
results in increased heterocyst development after shift to growth medium lacking a nitrogen
source. (i.e. A strain with the plasmid develops 4 heterocysts per 10 cells, and a strain with out
the plasmid develops 1 heterocyst per 10 cells.) A) What can you conclude regarding the function of hetR in Ana...
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This note was uploaded on 03/06/2012 for the course MIMG 100 taught by Professor Lazazzera during the Summer '10 term at UCLA.
- Summer '10