TLS Online TPP Program

#Question id: 4377


What is the function of TFIIH in the transcription initiation complex?

#Unit 3. Fundamental Processes
  1. binding to the TATA box

  2. unwinding the DNA duplex

  3. catalyzing the synthesis of RNA

  4. all of the above

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TLS Online TPP Program

#Question id: 10892

#Unit 10. Ecological Principles

Considering environment and ecosystem, identify the INCORRECT statement

TLS Online TPP Program

#Question id: 10899

#Unit 6. System Physiology – Plant

Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

TLS Online TPP Program

#Question id: 10901

#Unit 6. System Physiology – Plant

P-proteins have been characterized at the molecular level. P-proteins from the genus Cucurbita consist of two major proteins;

TLS Online TPP Program

#Question id: 10902

#Unit 6. System Physiology – Plant

P-proteins from the genus Cucurbita consist of two major proteins: PP1, the phloem filament protein, and PP2, the phloem lectin. Both PP1 and PP2 are thought to be synthesized in_______A___________and transported via the_______B_________to the_______C______, where they associate to form P-protein filaments and P-protein bodies.

TLS Online TPP Program

#Question id: 10904

#Unit 6. System Physiology – Plant

The sugar is a carbohydrate that are generally translocated  in the phloem in which form?

TLS Online TPP Program

#Question id: 10907

#Unit 6. System Physiology – Plant

The mechanism of phloem translocation in angiosperms is best explained by the pressure-flow model, this model is an example of,