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TLS Online TPP Program

#Question id: 11137

The motor (somatic nervous) system can alter the activities of its targets, the skeletal muscle fibers, because ________.

#Unit 7. System Physiology – Animal
  1. it is electrically coupled by gap junctions to the muscles
  2. its signals bind to receptor proteins on the muscles
  3. its signals reach the muscles via the blood
  4. it is connected to the internal neural network of the muscles
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TLS Online TPP Program

#Question id: 31380

#Unit 2. Cellular Organization

If you were to remove the ER retrieval signal from protein disulfide isomerase (PDI), which is normally a soluble resident of the ER lumen, where would you expect the modified PDI to be located?
TLS Online TPP Program

#Question id: 24543

#Unit 9. Diversity of Life Forms

During an experiment observed, a plant species that descended from a white-flower-bearing ancestor eventually became a red-flower-bearing species and made that species “unique”. The red-flower trait is an
TLS Online TPP Program

#Question id: 28726

#Unit 2. Cellular Organization

KDEL receptor, located in the different vesicles, except?
TLS Online TPP Program

#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 ________.
TLS Online TPP Program

#Question id: 4873

#Unit 8. Inheritance Biology

Six bands in a salivary gland chromosome of Drosophila are shown in the following figure, along with the extent of five deletions (Del 1 to Del 5)