Drosophila is considered a model system because it is quite easy to create transgenic lines harboring a variety of different genes. As a Drosophila geneticist, which one of the following is a DNA transposon that you would exploit to create a transgenic line?

#Question id: 11186

#Unit 7. System Physiology – Animal

Refer to the following graph of an action potential to answer the question. The membrane potential is closest to the equilibrium potential for potassium at label ________.

#Question id: 11187

#Unit 7. System Physiology – Animal

Refer to the following graph of an action potential to answer the question.

The membrane's permeability to sodium ions is greatest at label ________.

#Question id: 11188

#Unit 7. System Physiology – Animal

Refer to the following graph of an action potential to answer the question.

The minimum graded depolarization needed to operate the voltage-gated sodium and potassium channels is indicated by the label ________.

#Question id: 11189

#Unit 7. System Physiology – Animal

Refer to the following graph of an action potential to answer the question.

At label ________, the cell is not hyperpolarized; however, repolarization is in progress, as the sodium channels are inactivated or becoming inactivated, and many potassium channels have opened.

#Question id: 11190

#Unit 7. System Physiology – Animal

For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the ________.

#Question id: 11191

#Unit 7. System Physiology – Animal

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 ________.