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TLS Online TPP Program

#Question id: 4275

CCA-adding enzymes add a specific sequence without a template because

#Unit 3. Fundamental Processes

  1. CCA-adding enzymes have two active site that uses a similar two-metal ion mechanism of catalysis

  2. It only recognise A and C

  3. It only recognise G and U

  4. Specificity for the addition of C versus A is not controlled by changes in the active site as each base is added

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TLS Online TPP Program

#Question id: 19078

#Unit 4. Cell Communication and Cell Signaling

Avirulence (Avr) genes, they are recognized by a cognate resistance gene. The Pseudomonas AvrPto effector causes avirulence on tomato (Solanum lycopersicum) because they carry__
TLS Online TPP Program

#Question id: 4017

#Unit 3. Fundamental Processes

Which of the following sequences of events occurs when E. coli are released from catabolite repression by transfer to low-glucose medium?
TLS Online TPP Program

#Question id: 32576

#Unit 2. Cellular Organization

Microtubules are generally nucleated from a specific intracellular location known as a microtubule-organizing center where: 
TLS Online TPP Program

#Question id: 2534

#Unit 2. Cellular Organization

How the matrix polysaccharides are differ from the cellulose?
TLS Online TPP Program

#Question id: 3936

#Unit 3. Fundamental Processes

The large RNA-protein complex that processes introns and exons is called __.