Practice Questions

TLS Online TPP Program

#Question id: 3301

Following statement is correct regarding convergent evolution.

#Unit 11. Evolution and Behavior

Spreading of species to different and isolated environments which blocks the gene flow among the distinct populations
Flipper of whale and Fin of fish is one example of convergent evolution
Environmental induced force allowed to homologous organ being modified to new function
Sympatric speciation leads to divergence of one species in to two are more descendant species

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TLS Online TPP Program

#Question id: 9598

#Unit 6. System Physiology – Plant

In the oxidized state, reaction centre chlorophylls contain an unpaired electron, Molecules with unpaired electrons can often be detected by a magnetic-resonance technique known as

TLS Online TPP Program

#Question id: 21241

#Unit 7. System Physiology – Animal

A 45-year-old female who had never needed to wear glasses experienced difficulty reading a menu in a dimly-lit restaurant. She then recalled that as of late she needed to have the newspaper closer to her eyes in order to read it. A friend recommended she purchase reading glasses. Visual accommodation involves

TLS Online TPP Program

#Question id: 5845

#Unit 8. Inheritance Biology

Which of the following statements is false? In vitro, the strand-exchange reaction:

TLS Online TPP Program

#Question id: 9204

#Unit 9. Diversity of Life Forms

Which of the following observations provides the best evidence of a biodiversity crisis?