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TLS Online TPP Program

#Question id: 27173

The following statements are made with reference to membrane fusion reactions in vesicle transport catalyzed by transmembrane SNARE proteins.


#XL - T Zoology

  1. The SNARE transmembrane proteins exist as complementary sets, with v-SNARES on vesicle membranes and t-SNARES on target membranes

  2. A v-SNARE is usually composed of 3 proteins and t-SNARE is a single polypeptide chain
  3. The v-SNARE and t-SNARE proteins of a pair interact via helical domains possessed by the two proteins, resulting in formation of a stable two-helix bundle
  4. Membrane fusion is catalysed by the energy that is freed when the interacting helices wrap around each other to pull the membrane faces together, concurrently squeezing out water molecules from the interface.
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TLS Online TPP Program

#Question id: 7701

#XL - S Microbiology

The various taxonomic levels (for example, phyla, genera, classes) of the hierarchical classification system differ from each other on the basis of ________
TLS Online TPP Program

#Question id: 7701

#XL - T Zoology

The various taxonomic levels (for example, phyla, genera, classes) of the hierarchical classification system differ from each other on the basis of ________
TLS Online TPP Program

#Question id: 7702

#XL - S Microbiology

If organisms A, B, and C belong to the same class but to different orders and if organisms C, D, and E belong to the same order but to different families, which of the following pairs of organisms would be expected to show the greatest degree of structural homology?
TLS Online TPP Program

#Question id: 7702

#XL - T Zoology

If organisms A, B, and C belong to the same class but to different orders and if organisms C, D, and E belong to the same order but to different families, which of the following pairs of organisms would be expected to show the greatest degree of structural homology?
TLS Online TPP Program

#Question id: 7703

#XL - S Microbiology

Carolus Linnaeus believed that species remained fixed in the form in which they had been created. Linnaeus would have been uncomfortable with ________.
TLS Online TPP Program

#Question id: 7703

#XL - T Zoology

Carolus Linnaeus believed that species remained fixed in the form in which they had been created. Linnaeus would have been uncomfortable with ________.