TLS Online TPP Program

#Question id: 12245


The graph above illustrates a simplified description of the effect of disturbance on species diversity. Which of the following best explains the graph?

#Unit 10. Ecological Principles
  1. Productivity is enhanced at intermediate levels of disturbance. 
  2. Stabilizing selection occurs at intermediate levels of disturbance.
  3. The interaction of physical factors and biological competition increases diversity at intermediate levels of disturbance.
  4. Directional selection is enhanced by increased disturbance
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TLS Online TPP Program

#Question id: 10753

#Unit 10. Ecological Principles

Which of the following is correct combination? 


TLS Online TPP Program

#Question id: 3393

#Unit 11. Evolution and Behavior

Natural Selection can maintain a polymorphism when

a. heterozygote is fitter than the homozygote

b. Fitnesses of genotypes are negatively frequency dependent.

c. Fitnesses of genotypes are positive frequency dependent.

d. One homozygote is fitter than the heterozygote

TLS Online TPP Program

#Question id: 12890

#General Aptitude

The perimeters of a circle, a square and an equilateral triangle are same and their areas are C, S and T respectively. Which of the following statement is true ?

TLS Online TPP Program

#Question id: 1503

#Unit 4. Cell Communication and Cell Signaling

When the genes responsible for familial breast cancer were sequenced, it was found that the polypeptides they encoded contained a zinc finger motif. What does this suggest to you about the normal functions of the products of these genes?

TLS Online TPP Program

#Question id: 11807

#Unit 6. System Physiology – Plant

Given below are few statements regarding the cytokinin signalling pathway;

a) Cytokinin inhibits the activation of a Cdc25- like phosphatase, whose role is to remove an inhibitory phosphate group from the Cdc2 kinase

b) Cytokinin oxidase irreversibly inactivates cytokinins, and it could be important in regulating or limiting cytokinin effects

c) Cytokinin signal transduction pathway is completed on multiple places such as ER, Cytosol and Nucleus

d) Elevation of endogenous cytokinin levels in transgenic Arabidopsis results in overexpression of the KNOTTED homeobox transcription factor homologs KNAT1 and STM—genes 

Which of the following combinations  from the given above statements is correct?