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TLS Online TPP Program
#Question id: 1851
#Unit 4. Cell Communication and Cell Signaling
Which of the following is a feature of a Salmonella-based vaccine expressing antigens from other infectious agents?
TLS Online TPP Program
#Question id: 32352
#Unit 1. Molecules and their Interaction Relevant to Biology
The net free energy change, DG° of gluconeogenesis for the conversion of Pyruvate to glucose is
TLS Online TPP Program
#Question id: 14685
#Unit 4. Cell Communication and Cell Signaling
In dark-adapted rod cells, a high level of cGMP keeps cGMP-gated nonselective cation channels open, leading to hyperpolarization of the plasma membrane and neurotransmitter release.
B - Light absorption generates activated rhodopsin, R*, which binds inactive, GDP-bound Gαt protein and mediates the exchange of GDP for GTP .
C- The free Gαt∙GTP activates PDE by binding to its inhibitory γ subunits and dissociating them from the catalytic α and β subunits . Relieved of their inhibition, the α and β subunits of PDE hydrolyze GMP to cGMP .
D- The resulting decrease in cytosolic cGMP leads to dissociation of cGMP from the cation channels in the plasma membrane and the closing of those channels .
E- The membrane then becomes transiently hyperpolarized, and neurotransmitter release is reduced.
TLS Online TPP Program
#Question id: 7587
#General Aptitude
A goods train leaves a station at a certain time and at a fixed speed. After 8 hours, an express train leaves the same station and moves in the same direction at a uniform speed of 120 kmph, this train catches up the goods train in 7 hours. Find the speed of the goods train.
TLS Online TPP Program
#Question id: 20407
#Unit 3. Fundamental Processes
The same sequence of DNA encodes two nonhomologous proteins because it uses more than one reading frame are called as