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TLS Online TPP Program

#Question id: 10799

Arabidopsis thaliana mutants that lack the enzyme chalcone synthase____

#Unit 6. System Physiology – Plant
  1. Lacking Lignin, Is a Highly Complex flavonoids
  2. Still formed Tannins
  3. Lacking flavonoids, and these plants are much more sensitive to UV-B radiation

  4. inhibits synthesis of Trans-cinnamic acid, p-coumaric acid, they are derivatives of chalcone synthase

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TLS Online TPP Program

#Question id: 9184

#Unit 9. Diversity of Life Forms

Which aquatic biome listed here is one of the most productive on Earth, and why?
TLS Online TPP Program

#Question id: 33360

#Unit 1. Molecules and their Interaction Relevant to Biology

a. HbS (sickle-cell Hb): substitutes a Val for a Glu on the surface
b. Hb Cowtown: eliminates an ion pair involved in T-state stabilization
c. Hb Memphis: substitutes one uncharged polar residue for another of similar size on the surface
d. Hb Bibba: substitutes a Pro for a Leu involved in an α helix

Which Hb variant least likely to cause pathological symptoms
TLS Online TPP Program

#Question id: 20987

#Unit 12. Applied Biology

Toluene degradation could be optimized and linked to the reduction of 
1. Nitrate 
2. Nitrous oxide
3. Nitrite
Which of the below combinations are correct?
TLS Online TPP Program

#Question id: 1432

#Unit 4. Cell Communication and Cell Signaling

Which of the following proteins involved in angiogenesis is paired correctly with its function?
TLS Online TPP Program

#Question id: 5091

#Unit 5. Developmental Biology

In all vertebrate animals, development requires ________.