In systemic acquired resistance, the regulatory protein NPR-1 moves from the cytoplasm to the cell
nucleus, apparently in response to a buildup of ____ in the cytoplasm.
a. ethylene
b. brassinosteroids
c. oligosaccharins
d. jasmonates
e. salicylic acid
E
Biology & Microbiology
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The lac operator site within the lac operon is an example of which of the following?
A. cis-acting element B. para-acting element C. trans-acting element D. inter-acting element E. contra-acting element
Biology & Microbiology
Logging is a ________ sector activity
A) primary B) secondary C) tertiary D) quaternary
Biology & Microbiology
In the light-dependent reactions of photosynthesis, an excited electron from photosystem II is passed along an electron
transport chain to ____.
a. NAD+b. NADH c. photosystem I d. oxygen e. water
Biology & Microbiology
Spores are produced in the ________ of a fern.
a) archegonia b) sporangium c) ovary d) antheridia e) ovule
Biology & Microbiology