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TLS Online TPP Program

#Question id: 11145

Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.

#Unit 7. System Physiology – Animal
  1. are always open, but the concentration gradients of ions frequently change
  2. are always closed, but ions move closer to the channels during excitation
  3. are open or closed depending on their type, and are specific as to which ion can traverse them
  4. open in response to stimuli, and then close simultaneously, in unison
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TLS Online TPP Program

#Question id: 21956

#Unit 2. Cellular Organization

Active genes/euchromatin/gene cluster are found at the 
TLS Online TPP Program

#Question id: 19128

#Unit 12. Applied Biology

A biosensor has what all type of components? 
1. Biological
2. Gas phase
3. Physical
4. Suction chamber
Which of the following components are correct?
TLS Online TPP Program

#Question id: 31080

#Unit 4. Cell Communication and Cell Signaling

The principal function of DAG is:
TLS Online TPP Program

#Question id: 243

#Unit 1. Molecules and their Interaction Relevant to Biology

Deoxythymidine is a ________ found mainly in DNA.
TLS Online TPP Program

#Question id: 7022

#Unit 5. Developmental Biology

Two teratogens known to cause cyclopia in vertebrates are jervine and cyclopamine. Both targets hedgehog pathway. Both teratogens inhibits: