The ER-localized protein, which is required for FT movement into the phloem translocation stream is

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#Question id: 4676

#Unit 3. Fundamental Processes

λ-repressor activatory region present is in the

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#Question id: 15478

#Unit 12. Applied Biology

Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as 

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#Question id: 62

#Unit 1. Molecules and their Interaction Relevant to Biology

We can represent atoms by listing the number of protons, neutrons, and electrons—for example, 2p+, 2n0, 2e- for helium. Which of the following represents the 18O isotope of oxygen?

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#Question id: 11218

#Unit 7. System Physiology – Animal

Neurotransmitters can affect postsynaptic cells by ________.

I) initiating signal transduction pathways in the cells

II) causing molecular changes in the cells

III) altering ion channel proteinsIII) altering ion channel proteins

IV) altering the permeability of the cells

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#Question id: 12562

#Unit 10. Ecological Principles

In the nitrogen cycle, the bacteria that replenish the atmosphere with N