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TLS Online TPP Program

#Question id: 2493

Which of the following is NOT true about cilia?

#Unit 2. Cellular Organization

  1. All cilia arise from nine sets of outer triplet microtubules (similar to centrioles).

  2. Cilia contain the same transport system as flagella, called IFT.

  3. All cells with cilia are motile because of the axonemal dynein motor.

  4. Primary cilia contain receptors that increase the cell’s responsiveness to its environment.

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TLS Online TPP Program

#Question id: 23191

#Unit 13. Methods in Biology

In stimulated emission depletion (STED) microscopy the focused excitation laser point is surrounded by a 
TLS Online TPP Program

#Question id: 2827

#Unit 2. Cellular Organization

Two related genes that are derived from a gene duplication event are considered to be

a. homologous.                                   

b. paralogous.

c. orthologous.                       

d. members of a gene family.
TLS Online TPP Program

#Question id: 394

#Unit 1. Molecules and their Interaction Relevant to Biology

What will be the H+ ion concentration in a solution prepared by mixing 50.0 mL of 0.20 M NaCl, 25 mL of 0.10M NaOH and 25.0 mL of 0.30M HCl?
TLS Online TPP Program

#Question id: 12376

#Unit 10. Ecological Principles

All of the following may be considered as sites for secondary succession EXCEPT
TLS Online TPP Program

#Question id: 8935

#Unit 9. Diversity of Life Forms

What may have occurred to prevent species that are of the same grade from also belonging to the same clade?