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TLS Online TPP Program

#Question id: 11832

Ethylene production and action can be inhibited by various types of inhibitors, some statements about  the inhibitor is given below, which one of the following is incorrect?

#Unit 6. System Physiology – Plant
  1. The cobalt ion (Co2+) is an inhibitor of the ethylene biosynthetic pathway, blocking the conversion of ACC to ethylene by ACC oxidase
  2. Silver ions (Ag+) applied as silver nitrate (AgNO3) or as silver thiosulfate (Ag(S2O3)23-) are potent inhibitors of ethylene action
  3. The volatile compound cis-cyclooctene, but not its isomer trans-cyclooctene, is a strong competitive inhibitor of ethylene binding
  4. A novel inhibitor 1-methylcyclopropene (MCP), was recently found that binds almost irreversibly to the ethylene receptor
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TLS Online TPP Program

#Question id: 4401

#Unit 3. Fundamental Processes

Which of the following occur(s) during Pol II transcription preinitiation complex formation?

a. TFIIA binds to TFIIB.  b. TFIIB unwinds the DNA.

c. TFIIB contacts both TATA box–binding factor and DNA.

d. DNA bends.
TLS Online TPP Program

#Question id: 5400

#General Aptitude

a, b, c, d, and e are five consecutive odd numbers then what is the average ?
TLS Online TPP Program

#Question id: 2714

#Unit 2. Cellular Organization

HAT enzymes react with the side-chain of lysine to form the following structure. What effect will the HAT enzymes have on histones?
TLS Online TPP Program

#Question id: 24598

#Unit 2. Cellular Organization

Which of the following technique is used to identify regulatory proteins bound at an enhancer and topological domains 
TLS Online TPP Program

#Question id: 10543

#Unit 6. System Physiology – Plant

Effectors are molecules that change the plant’s structure, metabolism, or hormonal regulation to the advantage of the pathogen, which of the following is effector molecules?