TLS Online TPP Program

#Question id: 1587


In the human disease known as lupus, there is an immune reaction against a patientʹs own DNA from broken or dying cells. This kind of response typifies which kind of irregularity?

#Unit 4. Cell Communication and Cell Signaling
  1. allergy

  2. immunodeficiency

  3. autoimmune disease

  4. antigenic variation

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TLS Online TPP Program

#Question id: 10665

#Unit 10. Ecological Principles

Complete the following hypothetical life table of a species. 


Initial population size is 1000. What will be population size in next generation?


TLS Online TPP Program

#Question id: 231

#Unit 1. Molecules and their Interaction Relevant to Biology

Another name for α-tocopherol is vitamin ________.

TLS Online TPP Program

#Question id: 19090

#Unit 6. System Physiology – Plant

Fusicoccin effects role of which plant hormone?
a) Gibberellin
b) Auxin
c) Cytokinin
d) ABA

TLS Online TPP Program

#Question id: 9609

#Unit 1. Molecules and their Interaction Relevant to Biology

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

TLS Online TPP Program

#Question id: 12100

#Unit 10. Ecological Principles

Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?