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TLS Online TPP Program

#Question id: 27636

Each single strand of the beta-sheet structure can be pictured as a twofold helix, that is, a helix with

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. two residues per turn
  2. three residues per turn
  3. four residues per turn
  4. five residues per turn

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TLS Online TPP Program

#Question id: 31184

#Unit 4. Cell Communication and Cell Signaling

Which of the following are the central player in the canonical Wnt intracellular signal transduction pathway in vertebrates and in Drosophila respectively? 
TLS Online TPP Program

#Question id: 26503

#Unit 3. Fundamental Processes

Match the following
TLS Online TPP Program

#Question id: 12090

#Unit 10. Ecological Principles

The theory of punctuated equilibrium argues that
TLS Online TPP Program

#Question id: 7306

#Unit 5. Developmental Biology

A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter. Iris normally blooms as a long-day (short-night) plant. Which of the following has the best chance of creating iris blooms in winter?
TLS Online TPP Program

#Question id: 10556

#Unit 6. System Physiology – Plant

The energy needed to separate molecules from the liquid phase and move them into the gas phase at constant temperature called