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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: 18875

#Unit 9. Diversity of Life Forms

Assuming that they all belong to the same plant, arrange the following structures from smallest to largest. 
1. Antheridia 2. Gametes 
3. Gametophytes               4 .gametangia 
TLS Online TPP Program

#Question id: 7540

#General Aptitude

Two trains of lengths 200m and 320m pass each other with constant speeds on parallel tracks in opposite directions. The drivers and guards are at extremities of the trains. The time gap between the drives passing each other and first driver-guard pair passing each other is 25 s. How much later will other driver-guard pair pass by?
TLS Online TPP Program

#Question id: 11402

#Unit 9. Diversity of Life Forms

How can prokaryotes be considered to be more successful on Earth than humans?
TLS Online TPP Program

#Question id: 18738

#Unit 13. Methods in Biology

what do we mean by housekeeping genes?
TLS Online TPP Program

#Question id: 12110

#Unit 10. Ecological Principles

Which of the following has the smallest biomass?