Question

Answer the following about Aliivibrio fischeri activity within the Hawaiian bobtail squid, for 10 points each.
[10e] In exchange for being allowed to grow, A. fischeri enables the squid to hide its shadow via bioluminescence, exemplifying this form of symbiosis. Both organisms benefit in this symbiotic relationship.
ANSWER: mutualism [or word forms like mutualistic]
[10m] A. fischeri activates bioluminescence by regulating the lux operon via this process. More generally, this process involves bacteria changing their protein expression based on the cell density of their environment.
ANSWER: quorum sensing [accept QS]
[10h] Bacteria release and then track the concentration of these chemicals to determine whether cell density is high enough for quorum sensing. Acyl homoserine-lactones are the version of these chemicals used by A. fischeri.
ANSWER: autoinducers [accept quorum factors]
<Biology>

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Summary

Data

SheffieldBristol100010
Cambridge AWarwick1010020
Imperial ADurham A1010020
Durham BOxford C1010020