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TLS Online TPP Program
#Question id: 11132
#Unit 7. System Physiology – Animal
The sensation of temperature is signaled mainly by warm and cold receptors whose sensory fibers travel in association with the sensory fibers carrying pain signals. Which of the following statements best characterizes the transmission of signals from warm receptors?
TLS Online TPP Program
#Question id: 15780
#Unit 5. Developmental Biology
In drosophila, the somatic cells of the hub are able to regulate stem cell proliferation by secreting the paracrine factor Unpaired onto the cells attached to them. Unpaired activates the JAK-STAT pathway in the adjacent germ stem cells to specify their self-renewal. Those cells that are distant from the paracrine factor cannot receive this signal, they begin their differentiation into the sperm cell lineage. This means hub cells act as
TLS Online TPP Program
#Question id: 4914
#Unit 8. Inheritance Biology
German scientist Carl Correns found that the inheritance of variegated color on the leaves of certain plants was determined only by the maternal parent. What phenomenon explains this pattern of inheritance?
TLS Online TPP Program
#Question id: 18802
#Unit 13. Methods in Biology
Instead of Propidium iodide-labeled cell an alternate compound can be used which is Carboxyfluorescein succinimidyl ester (CFSE) in CFSE labeling amount of fluorescence emitted is cut in half each time the cell divides. The nature of this compound is
TLS Online TPP Program
#Question id: 19053
#Unit 13. Methods in Biology
The principle on which thin layer chromatography is based is that the ____________