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TLS Online TPP Program

#Question id: 10736

Ecotones are:

#Unit 10. Ecological Principles
  1. The boundaries between the discrete ecological units that comprise closed communities.
  2. The boundaries between the discrete ecological units that comprise open communities.
  3. The individual discrete ecological units of closed communities.
  4. The individual discrete ecological units of open communities. 
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TLS Online TPP Program

#Question id: 18607

#Unit 13. Methods in Biology

The PCR consists of three defined sets of times and temperatures, termed steps
a) Denaturation at 94°C, for 0.5 min
b) Primer annealing at 55°C for 1.5 min
c) Extension at 72°C for 1 min
d) only denaturation and extension
TLS Online TPP Program

#Question id: 8702

#Unit 9. Diversity of Life Forms

The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter). The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.

Regarding these sequence homology data, the principle of maximum parsimony would be applicable in ________.
TLS Online TPP Program

#Question id: 11194

#Unit 7. System Physiology – Animal

The "threshold" potential of a membrane is the ________.
TLS Online TPP Program

#Question id: 20970

#Unit 12. Applied Biology

Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
TLS Online TPP Program

#Question id: 33389

#Unit 1. Molecules and their Interaction Relevant to Biology

At what pH where polygly will readily forms an α-helix.