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TLS Online TPP Program

#Question id: 835

The minor clefts and gullies on the sides of the funnel that will be false energy minima, it represents,

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. native conformations of proteins

  2. fully folded conformations of proteins

  3. partially folded conformations of proteins

  4. state of unfolded conformations of protein

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TLS Online TPP Program

#Question id: 11742

#Unit 6. System Physiology – Plant

Mature sieve elements external view, showing sieve plates. The pores in the sieve plates between the sieve tube elements are open channels, what is the relevance of this open pores in the sieve plates?
TLS Online TPP Program

#Question id: 11211

#Unit 7. System Physiology – Animal

The following steps refer to various stages in transmission at a chemical synapse.


1. Neurotransmitter binds with receptors associated with the postsynaptic membrane.


2. Calcium ions rush into neuron's cytoplasm.


3. An action potential depolarizes the membrane of the presynaptic axon terminal.


4. The ligand-gated ion channels open.


5. The synaptic vesicles release neurotransmitter into the synaptic cleft.


Which sequence of events is correct?
TLS Online TPP Program

#Question id: 584

#Unit 1. Molecules and their Interaction Relevant to Biology

The non-enzymatic hydrolysis of sucrose into glucose and fructose is an example of a pseudo first-order reaction because
TLS Online TPP Program

#Question id: 23315

#General Aptitude

A child is a back -bencher and is unable to watch the black-board clearly, therefore he stands, see and sit repeatedly. It disturbs the nearby classmates, what inference will you draw with reference to the student's difficulty?
TLS Online TPP Program

#Question id: 12238

#Unit 10. Ecological Principles

The mussel Mytilus edulis thrives in saline habitats, in both the highly salty seawater of tidal zones and the less salty estuaries. This results in two kinds of populations: one adapted to the higher salt concentrations of the tidal zone, and one adapted to the lower salt concentrations of the estuary. It has been found that the more salt-tolerant populations have high frequencies of an allele that produces an enzyme involved in maintaining osmotic equilibrium. Conversely, estuarine mussels having the same enzyme seem to be disfavoured and have a much higher death rate than mussels without the allele. Adult estuarine populations do have lower frequencies of this allele. Each spring, large numbers of larvae from  the salty habitats pour into the estuaries.
The invasion of the seawater larvae would be expected to facilitate change in the genetic structure of the estuarine population by a process called