A metapopulation consists of

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#Question id: 3923

#Unit 3. Fundamental Processes

The transcription of __ RNA accounts for most of the transcriptional activity of a cell.

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#Question id: 18851

#Unit 13. Methods in Biology

Nickel-NTA (Ni-NTA) chromatography is a popular affinity chromatography method for the purification of histidine-tagged proteins. However, SDS-PAGE of the eluted protein can show bands in addition to your target protein. How might you improve this purification step?

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#Question id: 19082

#Unit 4. Cell Communication and Cell Signaling

Some necrotrophs produce host‐selective toxins as toxin that are active in only a few plant species; produced by the fungal pathogen Cochliobolus carbonum of maize (Zea mays) inhibits Plant enzyme such as___

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#Question id: 8934

#Unit 9. Diversity of Life Forms

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?

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#Question id: 216

#Unit 1. Molecules and their Interaction Relevant to Biology

Which atom is the reactive center on biotin?