TLS Online TPP Program

#Question id: 23172


Green fluorescent protein do contains a tripeptide sequence i.e. ser-tyr-gly but it only fluoresce when 

#Unit 13. Methods in Biology
  1. side chains non spontaneously linearises
  2. peptide bond spontaneously cyclizes
  3. side chains spontaneously linearises
  4. side chains spontaneously cyclizes
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TLS Online TPP Program

#Question id: 12102

#Unit 10. Ecological Principles

Use the following diagram of Joseph Connell's study of barnacle distribution in Scotland to answer the following two questions


Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?

TLS Online TPP Program

#Question id: 12104

#Unit 10. Ecological Principles

Two barnacles, Balanus and Chthamalus, can both survive on the lower rocks just above the low-tide line on the Scottish coast, but only Balanus actually does so, with Chthamalus adopting a higher zone. Which of the following best accounts for this niche separation?

TLS Online TPP Program

#Question id: 12105

#Unit 10. Ecological Principles

A species of fish is found to require a certain water temperature, a particular oxygen content of the water, a particular depth, a rocky substrate on the bottom, and a variety of nutrients in the form of microscopic plants and animals to thrive. These requirements describe its 

TLS Online TPP Program

#Question id: 12107

#Unit 10. Ecological Principles

As you study two closely related predatory insect species, the two-spot and the three-spot avenger beetles, you notice that each species seeks prey at dawn in areas without the other species. However, where their ranges overlap the two-spot avenger beetle hunts at night and the three-spot hunts in the morning. When you bring them into the laboratory, their offspring behave in the same manner. You have discovered an example of

TLS Online TPP Program

#Question id: 4932

#Unit 10. Ecological Principles

Which of the following is the best hypothesis regarding origins of nucleic acids?

TLS Online TPP Program

#Question id: 27686

#Unit 10. Ecological Principles

Which of the following factors are involved to determine the realized niches of organisms?