In Arabidopsis, floral organs develop in concentric whorls with four organ types: sepals, petals, stamens, carpels in whorls 1-4, respectively. Which of the following is true regarding Gene A in the ABC model of plant floral development? Gene A protein is translated in all four whorls Gene A codes for a regulatory transcription factor that binds to a silencer, preventing transcription of Gene C in whorls 1 and 2 Gene A codes for a regulatory transcription factor that binds to an enhancer, leading to transcription of a miRNA that prevents translation of Gene C in whorls 1 and 2 In situ hybridization showed that Gene A is transcribed in whorls 1 and 2 only A loss of function mutation of Gene A leads to a flower with no stamens or carpels

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Clinical Pharmacology

Pharmacology is a discipline of medicine that studies how medications interact with the systems and processes of living organisms, focusing on drug action mechanisms as well as therapeutic and other purposes.