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TLS Online TPP Program

#Question id: 11130

Which of the following electrical events is characteristic of inhibitory synaptic interactions?

#I Life Science/ Life Sciences Group – I-V
  1. A neurotransmitter agent that selectively opens ligand-gated chloride channels is the basis for an inhibitory postsynaptic potential
  2. Because the Nernst potential for chloride is about −70 mV, chloride ions tend to move out of the cell along its electrochemical gradient
  3. A neurotransmitter that selectively opens potassium channels will allow potassium to move into the cell
  4. An increase in the extracellular sodium concentration usually leads directly to an inhibitory postsynaptic potential
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TLS Online TPP Program

#Question id: 5028

#SCPH06 I Botany

What is the probable sequence in which the following clades of animals originated, from earliest to most recent?

1. tetrapods

2. vertebrates

3. deuterostomes

4. amniotes

5. bilaterians
TLS Online TPP Program

#Question id: 1591

#SCPH28 | Zoology

Which of the following is not true about helper T cells?
TLS Online TPP Program

#Question id: 10390

#SCPH05 I Biotechnology

Phytochromobilin autocatalytically attaches to the PHY apoprotein through
TLS Online TPP Program

#Question id: 6948

#SCPH06 I Botany

Which of the following genes is expressed at the posterior margin of each parasegment
TLS Online TPP Program

#Question id: 1645

#I Life Science/ Life Sciences Group – I-V

What is the characteristic that best defines the acquired immune response?