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TLS Online TPP Program

#Question id: 24459

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: 8291

#Unit 9. Diversity of Life Forms

Which of the following pairs are the best examples of homologous structures?
TLS Online TPP Program

#Question id: 182

#Unit 1. Molecules and their Interaction Relevant to Biology

Which amino acid is least likely to participate in acid-base catalysis?
TLS Online TPP Program

#Question id: 3503

#Unit 11. Evolution and Behavior

Following figure shown mate choice, following some statement is given

A) Male mate choice

B) More variance of matting success in female

C) Polygyny

D) More variance of matting success in male

E) Female mate choice

F) Polyandry
TLS Online TPP Program

#Question id: 3516

#Unit 8. Inheritance Biology

Cross allowed between pure line tall plant with pure line dwarf plant , all F1 having tall phenotype were allowed to self to produced  200 plant The number of F2 plant having pure line tall phenotype?
TLS Online TPP Program

#Question id: 10946

#Unit 7. System Physiology – Animal

A 26-year-old man received a paper cut. What substance is the major cause of pain of this acute inflammatory response?