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TLS Online TPP Program

#Question id: 2639

A Lac repressor is a tetramer repressed when bound to the inducer. The trp repressor is a ____________________

#Unit 2. Cellular Organization

  1. Dimer inactivated when bound to the inducer

  2.  Dimer activated on inducer binding

  3. Tetramer inactivated on inducer binding

  4. Tetramer activated on inducer binding

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TLS Online TPP Program

#Question id: 26583

#Unit 3. Fundamental Processes

Prokaryotes have two class I release factors called RF1 and RF2, choose the correct statement
a.RF1 recognizes the stop codon UAG, 
b.RF2 recognizes the stop codon UGA.
c.The third stop codon, UAA, is recognized by both RF1 and RF2. 
TLS Online TPP Program

#Question id: 31091

#Unit 4. Cell Communication and Cell Signaling

In a cell signaling event, the enzyme that directly converts Pl(4,5)P2 to Pl(3,4,5)P3 is:
TLS Online TPP Program

#Question id: 3992

#Unit 3. Fundamental Processes

RecA protein provides the functional link between DNA damage and the SOS response by displacing the LexA protein from its operator sites on the SOS genes.  RecA does so by:
TLS Online TPP Program

#Question id: 8789

#Unit 9. Diversity of Life Forms

If additional DNA sequence evidence shows that yeast genes for synthesizing proteins are more similar to protein-synthesizing genes in bacteria than those in archaea, a modern systematist would ________.
TLS Online TPP Program

#Question id: 27405

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the following structural features of lipids are given which of the following is incorrect