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Part B In most plants, such as Arabidopsis, genes whose encoded products have ro

ID: 264562 • Letter: P

Question

Part B In most plants, such as Arabidopsis, genes whose encoded products have roles related to photosynthesis have expression patterns that vary in a circadian manner. Using this knowledge, how would you screen for Arabidopsis mutants that have an impaired circadian rhythm? Seed from wild-type plants would be treated with a mutagen, allowed to develop and self-fertilize, and the progeny collected and screened for reduced fertility. Seed from wild-type plants would be treated with a mutagen, allowed to develop and self-fertilize, and the progeny collected and screened for gene expression profile defects. Seed from wild-type plants would be treated with a mutagen, allowed to develop and self-fertilize, and the progeny collected and screened for reduced growth rate. Seed from wild-type plants would be treated with a mutagen, allowed to develop and self-fertilize, and the progeny collected and screened for reduced viability.

Explanation / Answer

Part B In most plants, such as Arabidopsis, genes whose encoded products have ro