Opening all of the sodium channels on an otherwise typical neuron, with all other ion channels closed (which is an admittedly artificial setting), should move its membrane potential to ________.

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#Question id: 5703

#Unit 8. Inheritance Biology

Robertsonian translocation is reciprocal exchange of genetic segment between two acrocentric chromosomes. Which of the following is incorrect statement?

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#Question id: 2954

#Unit 2. Cellular Organization

Cyclin concentrations are highest during which periods of the cell cycle?

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#Question id: 58

#Unit 1. Molecules and their Interaction Relevant to Biology

A covalent chemical bond is one in which ________.

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#Question id: 19457

#Unit 13. Methods in Biology

Which microscopy can be used for viewing live cells and unstained tissues?

1. Fluorescence microscopy

2. Phase contrast microscopy

3. Dark field microscopy

4. Differential interference microscopy

5. Confocal microscopy

Which of the above combinations of microscopy is correct?

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#Question id: 11330

#Unit 10. Ecological Principles

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?