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TLS Online TPP Program

#Question id: 20319

What is the purpose of quorum sensing?

#Unit 4. Cell Communication and Cell Signaling
  1. Enables bacteria to turn on genes synchronously at density independent manner in the population.
  2. Enables bacteria to turn on genes synchronously in response to increases in the density of cells in the population.
  3. Enables bacteria to turn off genes synchronously in response to increases in the density of cells in the population.
  4. Enables bacteria to turn on genes synchronously in response to decreases in the density of cells in the population.
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TLS Online TPP Program

#Question id: 2841

#Unit 2. Cellular Organization

To duplicate a chromosome, at least half of the nucleosomes on the daughter chromosomes must be newly synthesized. But histone proteins as new and old occupies strands differently as
TLS Online TPP Program

#Question id: 6999

#Unit 5. Developmental Biology

The developmental precursors to the gonadal tissues of Caenorhabditis elegans uniquely contain ________.
TLS Online TPP Program

#Question id: 1268

#Unit 4. Cell Communication and Cell Signaling

The collagen triple-helix domain

a. is rich in glycine.                             b. is rich in proline.

c. is rich in hydroxyproline.                d. is an alpha helix.
TLS Online TPP Program

#Question id: 13215

#Unit 6. System Physiology – Plant

KCl solutions separated by a membrane in The K+ and Cl– ions will permeate the membrane independently as they diffuse down their respective gradients of electrochemical potential, In biological systems, membranes are usually more permeable to K+ than to Cl–. Therefore, K+ will diffuse out of the cell  faster than Cl–, causing
TLS Online TPP Program

#Question id: 28849

#Unit 2. Cellular Organization

Select the correct combination of Kinesin-13?
a) It is ATPases
b) It is end-binding Proteins 
c) It is a member of the kinesin motor protein superfamily
d) It controlling the activities of proteins during the cell cycle
e) It involves to enhancing the frequency of catastrophe activity