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TLS Online TPP Program

#Question id: 1091

Why does testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affect only target cells?

#4. Cell Communication and Cell Signaling

  1. Only target cells retain the appropriate genes regulated by testosterone.

  2. Intracellular receptors for testosterone are present only in target cells.

  3. Only target cells possess the cytosolic enzymes that transduce the signal from testosterone to adenylyl cyclase.

  4. Only in target cells is testosterone able to initiate the phosphorylation cascade leading to activated transcription factor.

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TLS Online TPP Program

#Question id: 19842

#13. Methods in Biology

Primer-Dimer leads to the formation of ___
a) Inter-complemetary primers
b) Hybrid 
c) Amplicons
TLS Online TPP Program

#Question id: 10878

#7. System Physiology – Animal

The resistance of the pulmonary tree is so low that a 1 cm of water pressure gradient is sufficient to cause normal air flow during resting conditions. Which of the following often has a substantial resistance during pulmonary disease states that can limit alveolar ventilation?
TLS Online TPP Program

#Question id: 9252

#9. Diversity of Life Forms

Which of these environmental factor(s) is/are the key determining factor(s) that control(s) the biotic structure of aquatic biomes?
TLS Online TPP Program

#Question id: 19213

#12. Applied Biology

In Agrobacterium tumefaciens Crown gall formation is the consequence of
TLS Online TPP Program

#Question id: 23643

#Aptitude

A straight line is 36 cm long. the points are to be marked on the line from both the ends so that the first point be at a distance of 1 cm from one end, the second point be at a distance of 2 cm from the first point and the third point be at a distance of 3 cm from the second point and so on. If the points on the ends are not counted and the common points are counted as one, what is number of points?