lac operator is made up of

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#Question id: 18668

#Unit 13. Methods in Biology

Enzymes and antibody can easily be detected in samples subjected to electrophoresis on cellulose acetate, by using the 

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#Question id: 11471

#Unit 7. System Physiology – Animal

Hair cells in the vertebrate ear are responsible for transducing sound pressure waves. Ion channels in the hair cell membrane open when ________.

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#Question id: 2945

#Unit 2. Cellular Organization

Separation of spindle poles during spindle formation and anaphase B most likely depends on which of the following?

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#Question id: 2236

#Unit 2. Cellular Organization

The partition coefficient K, the equilibrium constant for partitioning between oil and water, for butyric acid is about 10^–2, and for 1,4-butanediol it is about 10^–4.  You add liposomes containing only water to a solution with an initial concentration of 1 mM butyric acid and 100 mM 1,4-butanediol outside the liposomes.  What is the relative rate of diffusion of the two substances into the liposome interior?

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#Question id: 12601

#Unit 10. Ecological Principles

The total biomass of photosynthetic autotrophs present in an ecosystem is known as