Which organism is used to make Swiss cheese?
A. Saccharomyces cerevisiae
B. Spirulina
C. Leuconostoc mesenteroides
D. Streptococcus lactis and Lactobacillus
E. Propionibacterium
Answer: E
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Transcriptional regulation is considered negative when an inducer binds to and deactivates a repressor
Indicate whether the statement is true or false.
do nitrogen-fixation nodules contain large amounts of leghemoglobin?
A. It helps transport oxygen to the bacteria. B. The nitrogenase enzyme interacts with the iron in the leghemoglobin. C. The leghemoglobin helps break the triple bond of N2. D. It stimulates the Nod factors. E. It prevents carbon dioxide from inhibiting the nitrogenase enzyme.
The three main regions of the human small intestine proceeding in sequence from the stomach to the large intestine are
A. duodenum, ileum, and jejunum. B. ileum, duodenum, and jejunum. C. ileum, jejunum, and duodenum. D. jejunum, ileum, and duodenum. E. duodenum, jejunum, and ileum.
Long term responses rather than immediate
behavioral responses are induced by a. alarm signals. b. signaling pheromones. c. sex attractants. d. priming pheromones. e. all of these.