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TLS Online TPP Program

#Question id: 3980

Which of the following statements correctly describes promoters in E. coli?

#Unit 3. Fundamental Processes

  1. A promoter may be present on either side of a gene or in the middle of it.

  2. All promoters have the same sequence that is recognized by RNA polymerase holoenzyme.

  3. Every promoter has a different sequence, with little or no resemblance to other promoters.

  4. Many promoters are similar and resemble a consensus sequence, which has the highest affinity for RNA polymerase holoenzyme.

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TLS Online TPP Program

#Question id: 1047

#Unit 4. Cell Communication and Cell Signaling

A virion is a(n)
TLS Online TPP Program

#Question id: 33695

#Unit 2. Cellular Organization

if an individual has only one α gene, the excess β chains form the unusual tetramer b4, which causes
TLS Online TPP Program

#Question id: 29536

#Unit 6. System Physiology – Plant

Polygalacturonases (PG) secreted by the fungal hyphae interact with WAK1 on plant cell wall results in the expression of plant defense proteins, including
a. PGIPs                       
b. Chitinases
c. glucanases                 
d. phytoalexins
 Which of the following is true
TLS Online TPP Program

#Question id: 4544

#Unit 3. Fundamental Processes

How is the binding of ligand to the extracellular domain communicated to the intracellular domain?
TLS Online TPP Program

#Question id: 8923

#Unit 9. Diversity of Life Forms

Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?