Before ARF transcription factors can trigger auxin-induced gene expression, what must happen?
A. Auxin binds to ubiquitin, a degradation tag.
B. Auxin degrades Aux/IAA proteins which repress ARF transcription factors.
C. Auxin binds to TIR1, an auxin receptor.
D. Auxin must bind to the ARF transcription factor.
E. Ubiquitin must destroy TIR1 to release Aux/IAA proteins.
C. Auxin binds to TIR1, an auxin receptor.
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In the experiment outlined in the figure above, what would you expect to happen if researchers supplied an enzyme that blocked the expression of the Dll gene?
A) The embryo would have appendages in abnormal locations. B) The origins of the embryo's appendages would fluoresce. C) The developing embryo would have no appendages. D) The embryo's appendages would be shorter than usual.
The bacterial Shine-Dalgarno mRNA sequence is:
A. a translation termination signal. B. the ribosomal binding site. C. a translational elongation factor. D. a protein coding region.
The important solvent associated with living things is ________.
A. sodium chloride B. benzene C. water D. ethyl alcohol E. carbon dioxide
Conditional alleles result in phenotypic differences in permissive as opposed to restrictive conditions. What do these conditions have in common?
What will be an ideal response?