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TLS Online TPP Program

#Question id: 12285

The principle of competitive exclusion states that

#Unit 10. Ecological Principles
  1. Two species cannot coexist in the same habitat.
  2. Competition between two species always causes extinction or emigration of one species. 
  3. Competition in a population promotes survival of the best-adapted individuals.
  4. Two species that have exactly the same niche cannot coexist in a community.
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TLS Online TPP Program

#Question id: 23153

#Unit 13. Methods in Biology

SNARF-1is a fluorescent dye used to measure which ion concentration?
TLS Online TPP Program

#Question id: 23150

#Unit 13. Methods in Biology

How fura-2 dye moves inside the cell through plasma membrane?
TLS Online TPP Program

#Question id: 23149

#Unit 13. Methods in Biology

In fluorescence microscopy a usually used fluorochrome that is fura-2 is sensitive to which ions?
TLS Online TPP Program

#Question id: 23147

#Unit 13. Methods in Biology

In fluorescence microscopy why the fluorescence occurs at longer wavelength when there shorter   wavelength of light is applied?
TLS Online TPP Program

#Question id: 23146

#Unit 13. Methods in Biology

A phenomenon of absorption of light at a certain wavelength and then emission at longer wavelength is known as
TLS Online TPP Program

#Question id: 23145

#Unit 13. Methods in Biology

A chemical is said to be fluorescent if it absorbs light at one wavelength (excitation) and emits light (fluoresces) at a specific