Write a one-sentence explanation for the role of each of the following plant hormonelike signaling molecules: methyl
salicylate and jasmonic acid. What will be an ideal response?
Methyl salicylate triggers a signal transduction pathway that turns on the genes for the
systemic acquired resistance pathway, which in turn fights infection and promotes wound
healing. Jasmonic acid triggers the production of enzymes that confer increased resistance
against herbivorous insects.
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Blood cultures are drawn on a patient suspected of having a fungemia. Positive cultures reveal the presence of chlamydoconidia on cornmeal agar. In addition, the yeast is germ tube positive. The most likely identification of the fungal agent is:
a. C. glabrata. b. C. tropicalis. c. C. neoformans. d. C. albicans.
In a resting person what percentage of blood pumped by the right ventricle enters the lungs?
a. 0 percent b. 10 percent c. 20 percent d. 50 percent e. 100 percent
Recombinant DNA technology does not rely on which of the following enzymes?
A. DNA ligase B. RNA methylase C. Reverse transcriptase D. Restriction endonucleases
From which part of a eukaryotic cell do microtubules radiate?
a. Flagellum b. Nucleus c. Centrosome d. Mitochondrion