Signaling from the plant hormone auxin leads to the degradation of a set of proteins that repress gene expression, called AUX/IAA proteins. Assuming that all the signaling components are present, and AUX/IAA proteins recognize the regulatory elements in Gene A, how will the expression of Gene A change in a plant cell after the addition of auxin?
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Step 1: Auxin is added to the plant cell, initiating the signaling pathway that leads to the degradation of AUX/IAA proteins. Show more…
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In the signal transduction process for the hormone auxin, the molecule ubiquitin (a) absorbs blue light (b) becomes phosphorylated (c) tags certain proteins for destruction (d) interacts antagonistically with gibberellins (e) binds to a receptor in the plant cell's plasma membrane
Signal transduction for both auxin and gibberellins involves a. binding of the hormone to a nuclear receptor. $b$. degradation of a repressor of gene transcription. c. production of a small molecule second messenger. $d$. iight absorption followed by chemical changes. $e .$ breakdown of the hormone.
In the signal transduction process for the hormone auxin, the molecule ubiquitin (a) absorbs blue light (b) becomes phosphorylated (c) tags certain proteins for destruction (d) interacts antagonistically with gibberellins (e) binds to a receptor in the plant cell's plasma membrane.
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