TLS Online TPP Program

#Question id: 21246


The correct sequence of events involved in phototransduction in rods and cones in response to light is:

#Unit 7. System Physiology – Animal
  1. activation of transducin, decreased release of glutamate, structural changes in rhodopsin, closure of Na + channels, and decrease in intracellular cGMP.
  2. decreased release of glutamate, activation of transducin, closure of Na + channels, decrease in intracellular cGMP, and structural changes in rhodopsin.
  3. structural changes in rhodopsin, decrease in intracellular cGMP, decreased release of glutamate, closure of Na + channels, and activation of transducin.
  4. structural changes in rhodopsin, activation of transducin, decrease in intracellular cGMP, closure of Na + channels, and decreased release of glutamate.
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TLS Online TPP Program

#Question id: 28453

#Unit 5. Developmental Biology

The cells which donot receive any signals from the anchor cell because these cell farther away from anchor cells that involve to generate which type of cell by default ?

TLS Online TPP Program

#Question id: 28454

#Unit 5. Developmental Biology

A researcher performed an experiment during vulva formation in C.elegans;
I- In first experiment destroyed anchor cell 
II- In second experiment destroyed three central VPCs 
What kind of conclusion has been drawn by these experiments?
a) I-Three cells out of six of the equivalence group divide once and contribute to the vulva formation
b) I-all six cells of the equivalence group divide once and contribute to the hypodermal tissue
c) II-three outer cells, which normally form hypodermis, generate vulval cells instead
d) II-three remaining cells normally formed hypodermis as usually

TLS Online TPP Program

#Question id: 28455

#Unit 5. Developmental Biology

Which of the following protein is function as concentration gradient manner in C.elegans?

TLS Online TPP Program

#Question id: 28456

#Unit 5. Developmental Biology

 Which of the following VPCs involve to generates the central vulval cells?

TLS Online TPP Program

#Question id: 28457

#Unit 5. Developmental Biology

In which case of vulva formation in C.elegan, precursor cell has the ability to become hypodermis ?

TLS Online TPP Program

#Question id: 28458

#Unit 5. Developmental Biology

In C. elegans LAG-2 protein and LIN-12 protein is homologous to which of the signaling pathway?