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TLS Online TPP Program

#Question id: 12112

The presence of altruistic behaviour is most likely due to kin selection, a theory maintaining that

#Unit 10. Ecological Principles

Aggression between sexes promotes the survival of the fittest individuals.
Genes enhance survival of copies of themselves by directing organisms to assist others who share those genes.
Companionship is advantageous to animals because in the future they can help each other.
Critical thinking abilities are normal traits for animals and they have arisen, like other traits, through natural selection.

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TLS Online TPP Program

#Question id: 23155

#Unit 13. Methods in Biology

Match the following ions in column I with their relevant dyes column II.

Column I Column II

1. K+ a. Fura-2

2. Ca2+ b. SNARF-1

3. H+ c. Ion potassium green

Which of the following options is correct?

TLS Online TPP Program

#Question id: 23156

#Unit 13. Methods in Biology

Most widely used method of detecting specific proteins, uses an antibody to which a fluorescent dye has been covalently attached

TLS Online TPP Program

#Question id: 23157

#Unit 13. Methods in Biology

Immunofluorescence microscopy, the most widely used method of detecting

TLS Online TPP Program

#Question id: 23158

#Unit 13. Methods in Biology

You have purified protein X and injected into an animal so that over a period of weeks, the animal will mount an immune response and make antibodies to protein X. By which technique these generated antibodies can be extracted from blood serum.

TLS Online TPP Program

#Question id: 23159

#Unit 13. Methods in Biology

Rhodamine is a fluorescent dye which emits a colour?

TLS Online TPP Program

#Question id: 23160

#Unit 13. Methods in Biology

Texas is a fluorescent dye which emits a colour?