TLS Online TPP Program
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TLS Online TPP Program
#Question id: 1388
#Unit 4. Cell Communication and Cell Signaling
When Lucifer yellow, a small dye, is injected into a neuron of the retina, neighboring neurons become rapidly labeled. If the retina is incubated in dopamine prior to Lucifer yellow injection, only the injected neuron becomes labeled. These findings suggest which of the following?
I. Neurons of the retina communicate via gap junctions.
II. Dopamine is transferred between cells via gap junctions.
III. Dopamine decreases the permeability of gap junctions.
TLS Online TPP Program
#Question id: 20024
#Unit 13. Methods in Biology
Precipitation reaction are recognise by the formation of
a) Lattice
b) Agglutination
c) Ordered structure of antigen and antidody
d) Antibody must be bivalent
TLS Online TPP Program
#Question id: 12441
#Unit 10. Ecological Principles
As the biomass of the individual plants making up a population increases
TLS Online TPP Program
#Question id: 31310
#Unit 3. Fundamental Processes
The lentiviral expression vectors are particularly useful for introducing synthetic genes for the expression of
TLS Online TPP Program
#Question id: 15962
#Unit 12. Applied Biology
Which of the following chemicals are most widely used for protoplast fusion?