True or false: If natural selection is the driving force for speciation of two competing subspecies, you would expect to see a bell-shaped distribution of the phenotypes being selected
A. true
B. false
B
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What are the primary cells of adaptive immunity?
What will be an ideal response?
Before ARF transcription factors can trigger auxin-induced gene expression, what must happen?
A. Auxin binds to ubiquitin, a degradation tag. B. Ubiquitin must destroy TIR1 to release Aux/IAA proteins. C. Auxin must bind to the ARF transcription factor. D. Auxin degrades Aux/IAA proteins which repress ARF transcription factors. E. Auxin binds to TIR1, an auxin receptor.
Photosynthesis Photosynthesis
a) is NOT dependent on chlorophyll. b) does NOT involve oxidation-reduction reactions. c) produces water and carbon dioxide. d) produces glucose and oxygen. e) None of the answers are correct.
What is the primary growth-promoting hormone of plants?
A. auxin B. gibberellin C. abscisic acid D. cytokinin