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TLS Online TPP Program

#Question id: 4663

Which two polymerases function in transcriptional repression directed by nuclear siRNAs in plants?

#Unit 3. Fundamental Processes

  1. RNA polymerases I and III

  2. RNA polymerases IV and V

  3. RNA polymerases II and III

  4. RNA polymerases III and IV

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TLS Online TPP Program

#Question id: 621

#Unit 1. Molecules and their Interaction Relevant to Biology

Michaelis and Menten assumed that the overall reaction for an enzyme-catalyzed reaction could be written as Using this reaction, the rate of breakdown of the enzyme-substrate complex can be described by the expression:
TLS Online TPP Program

#Question id: 11450

#Unit 7. System Physiology – Animal

 The conversion of a stimulus into an action potential by a receptor cell is called ________.
TLS Online TPP Program

#Question id: 1963

#Unit 4. Cell Communication and Cell Signaling

Inflammatory responses may include which of the following?
TLS Online TPP Program

#Question id: 15861

#Unit 12. Applied Biology

which part of the plant tissue will be promoted by Increasing the amount of Auxin in callus culture ?
TLS Online TPP Program

#Question id: 19792

#Unit 12. Applied Biology

Expression of BtR175 gene in mammalian cells enables Cry1Aa to bind the cells and cause their lysis. The specificity seems to be lost upon reduction of which amino acid residues of the protoxin, but can be restored by reoxidation of these residues?