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TLS Online TPP Program

#Question id: 11200

Action potentials are normally carried in only one direction: from the axon hillock toward the axon terminals. If you experimentally depolarize the middle of the axon to threshold, using an electronic probe, then ________.

#Unit 7. System Physiology – Animal
  1. no action potential will be initiated
  2. an action potential will be initiated and proceed only in the normal direction toward the axon terminal
  3. an action potential will be initiated and proceed only back toward the axon hillock
  4. two action potentials will be initiated, one going toward the axon terminal and one going back toward the hillock
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TLS Online TPP Program

#Question id: 3622

#Unit 8. Inheritance Biology

Two allelic genes are situated on
TLS Online TPP Program

#Question id: 5551

#Unit 5. Developmental Biology

When the vertebrate embryo grows into a hollow ball, it is called a
TLS Online TPP Program

#Question id: 3655

#Unit 3. Fundamental Processes

The mismatched base is removed from the daughter strand of DNA by:
TLS Online TPP Program

#Question id: 293

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following types of bonds or interactions between lipid hydrocarbon tails is responsible for lipids forming a membrane bilayer or membranous vesicles in water
TLS Online TPP Program

#Question id: 10418

#Unit 6. System Physiology – Plant

What is the reason behind that the PAS-related domain (PRD) is only present in the Plant phytochrome, but absent in cyanobacterial Cph1 and Bacterial BphP?