The activation of proteinase inhibitor genes occurs
A. in the cytoplasm of the affected cells.
B. on the plasma membrane of the affected cells.
C. in the nucleus of the affected cells.
D. before the systemin moves through the phloem of the plant.
E. in anticipation of a physical wound to the plant.
C. in the nucleus of the affected cells.
Genes, which are segments of DNA, are located in the nucleus.
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A codon consists of two nucleotides
Indicate whether this statement is true or false.
In three sentences or less, explain why a plant placed in a window grows toward the light. What will be an ideal response?
Chromosomes align along the equator during
A. metaphase. B. anaphase. C. telophase. D. prophase.
At the synapse, some neurotransmitters open ion channels that make the interior of the postsynaptic neuron more negative. Thus, these neurotransmitters produce a(n) ________ postsynaptic potential (IPSP)
A) enhancing B) decreasing C) excitatory D) inhibitory E) rewarding