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TLS Online TPP Program

#Question id: 9189

A plant will recognize a pathogenic invader

#Unit 9. Diversity of Life Forms
  1. if it has many specific plant disease resistance (R) genes.
  2. when the pathogen has an R gene complementary to the plantʹs antivirulence (Avr) gene.
  3. only if the pathogen and the plant have the same R genes.
  4. if it has the specific R gene that corresponds to the pathogen molecule encoded by an Avr gene.
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TLS Online TPP Program

#Question id: 301

#Unit 1. Molecules and their Interaction Relevant to Biology

What explains the very high melting and boiling point of water?
TLS Online TPP Program

#Question id: 8891

#Unit 9. Diversity of Life Forms

While vacationing in a country that lacks adequate meat inspection, a student ate undercooked ground beef. Sometime later the student became easily fatigued, and lost body weight. At about the same time, whitish, flattened, rectangular objects full of small white spheres started appearing in his feces. Administration of niclosamide cured the problem. The student had probably been infected by a
TLS Online TPP Program

#Question id: 12788

#Unit 10. Ecological Principles

To recycle nutrients, the minimum an ecosystem must have is
TLS Online TPP Program

#Question id: 3453

#Unit 11. Evolution and Behavior

The degree of genetic relatedness between the offspring and their parents is
TLS Online TPP Program

#Question id: 4971

#Unit 11. Evolution and Behavior

On the basis of their morphologies, how might Linnaeus have classified the Hawaiian silverswords?