Na+/I – symporter (NIS) is capable of producing intracellular I – concentrations that are 20– 40 times as great as the concentration in plasma

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#Id: 9865

#Unit 6. System Physiology – Plant

A novel F-actin-binding protein, CHLOROPLAST UNUSUAL POSITIONING1 (CHUP1) catalyses chloroplast movement.

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#Id: 9554

#Unit 11. Evolution and Behavior

Alfred Russel Wallace - Who was collecting specimens in the Malay Archipelago, had independently conceived of natural selection

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#Id: 6386

#Unit 2. Cellular Organization

Mutants that cannot be expressed at all are called uninducible. Mutants that are continuously expressed are called constitutive mutants.

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#Id: 2910

#Unit 13. Methods in Biology

The rate of sedimentation is dependent upon the applied centrifugal field (cm s-2), G,

that is determined by the radial distance, r, of the particle from the axis of rotation (in cm)

and the square of the angular velocity ω, of the rotor (in radians per second):

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#Id: 1385

#Unit 4. Cell Communication and Cell Signaling

There are three classes of myosins, are present in many eukaryotes: 

Myosin I- single head domain

Myosin II- two heads and assembles into bipolar filaments

Myosin V- two heads but does not assemble into filaments