when one species uses a second species for housing, is an characteristics of

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#Question id: 18849

#Unit 13. Methods in Biology

Which of these techniques is often considered a suitable "polishing" step in a protein purification strategy?

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#Question id: 2139

#Unit 2. Cellular Organization

A process not involving the fusion of two membranes or two regions of the same membrane is:

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#Question id: 1730

#Unit 4. Cell Communication and Cell Signaling

What is the T-cell ligand binding B7 on a professional antigen-presenting cell?

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#Question id: 19055

#Unit 13. Methods in Biology

In quantitative T.L.C radioactive material can be studied by 

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#Question id: 4241

#Unit 3. Fundamental Processes

Use the figure to answer the question. The tRNA shown in the figure has its 3′ end projecting beyond its 5′ end. Which of the following processes will occur at this 3′ end?