Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 30807
TLS Online TPP Program

#Question id: 11334

To qualify as a biodiversity hotspot, a region must meet following two strict criteria

#Unit 10. Ecological Principles
  1. Region has at least 1,500 vascular plants as endemics and must have 30% or less of its original natural vegetation
  2. Region has at least 1,500 mammal species as endemics and must have 30% or less of its original natural vegetation
  3. Region has at least 1,500 vascular plants as endemics and must have 50% of its original natural vegetation
  4. Region has at least some threatened plant species and must have 30% or less of its original natural vegetation
More Questions
TLS Online TPP Program

#Question id: 14486

#Unit 13. Methods in Biology

There are two bags, one of which contains 5 red and 7 white balls and the other 3 red and 12 white balls. A ball is to be drawn from one or other of the two bags, find the chance of drawing a red ball.
TLS Online TPP Program

#Question id: 3893

#Unit 3. Fundamental Processes

Protein structural motifs often have general functions in common.  Which one of the following motifs is known to be involved in protein dimer formation, but not in direct protein-DNA interactions?
TLS Online TPP Program

#Question id: 8776

#Unit 9. Diversity of Life Forms

What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdom?
TLS Online TPP Program

#Question id: 2649

#Unit 2. Cellular Organization

Which operon behaves similar to Bacillus subtilis trp operon in terms of attenuation?
TLS Online TPP Program

#Question id: 19225

#Unit 12. Applied Biology

Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.