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TLS Online TPP Program

#Question id: 9596

The reaction centre chlorophyll is transiently in an oxidized state after losing an electron and before being re-reduced by its electron donor, what characteristics has been shown by chlorophylls in an oxidized state?

#Unit 6. System Physiology – Plant
  1. chlorophylls lose their characteristic low light absorbance in the red region of the spectrum; they become bleached
  2. chlorophylls lose their characteristic strong light absorbance in the red region of the spectrum; they become bleached
  3. chlorophylls lose their characteristic strong light absorbance in the far-red region of the spectrum; they become bleached
  4. chlorophylls lose their characteristic strong light absorbance in the far-red region of the spectrum; they become bleached
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TLS Online TPP Program

#Question id: 5017

#Unit 11. Evolution and Behavior

Arrange these events from earliest to most recent.

1.  emission of lava in what is now Siberia at time of Permian extinctions

2.  emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust

3.  emission of lava that solidified at the same time as rusted iron precipitated from seawater

4.  emission of lava in what is now India at time of Cretaceous extinctions
TLS Online TPP Program

#Question id: 23755

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following is always found in 'Wonder'?
TLS Online TPP Program

#Question id: 298

#Unit 1. Molecules and their Interaction Relevant to Biology

Water molecules contain _____________ hydrogen bond/s.
TLS Online TPP Program

#Question id: 24027

#Unit 1. Molecules and their Interaction Relevant to Biology

DTH service was started in the year:
TLS Online TPP Program

#Question id: 11153

#Unit 9. Diversity of Life Forms

A researcher wants to determine the genetic relatedness of several breeds of dog (Canis familiaris). The researcher should compare homologous sequences of __________ that are known to be __________.