Arrange the statements below in the proper sequence of events that occur in an action potential:

I. The resting potential is re-established.

II. A stimulus depolarizes the membrane to threshold.

III. Na+ gates open and Na+ rushes into the cell.

IV. K+ gates open and K+ rushes out of the cell.

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#Question id: 28361

#Unit 5. Developmental Biology

 Which of the following protein is involve to the stabilization of Nanos localization complex ?

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#Question id: 15908

#Unit 5. Developmental Biology

Sex-lethal, transformer, and doublesex are all part of the genetic cascade of:

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#Question id: 40

#Unit 1. Molecules and their Interaction Relevant to Biology

Given that the standard free-energy change for the reaction glucose + Pi → glucose 6-phosphate is 13.8 kJ/mol, and the standard free-energy change for the reaction ATP → ADP + Pi is −30.5 kJ/mol, what is the free-energy change for the reaction glucose + ATP → glucose 6-phosphate + ADP?

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#Question id: 1468

#Unit 4. Cell Communication and Cell Signaling

Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

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#Question id: 12923

#Unit 13. Methods in Biology

Name the technology which is used as a means of identifying the initial concentrations of DNA or cDNA template used.