Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 41568
TLS Online TPP Program

#Question id: 27364

Which statement best describes the distinction between the purposes of the two RNAi pathways within the eukaryotic cell?

#XL - T Zoology
  1. miRNA-mediated gene silencing represents a back-up pathway should siRNA-mediated gene silencing be unsuccessful at silencing the target dsRNA

  2. siRNA and miRNA-mediated gene silencing pathways must both be active to successfully silence the target dsRNA

  3. miRNA and siRNA-mediated gene silencing represent evolutionary-independent pathways which confer identical silencing mechanisms on the target dsRNA

  4. siRNA-mediated gene silencing represents a cell defence mechanism against exogenous dsRNA; miRNA-mediated gene silencing is an integral gene expression regulation process

More Questions
TLS Online TPP Program

#Question id: 95

#XL - Q Biochemistry

What is the name of the disaccharide shown below that is formed by joining two monomers of D-glucose
TLS Online TPP Program

#Question id: 15452

#XL - S Microbiology

During  activation of B-cell, T cell delivers cytokines and other signals to its partner B cell. Which types of cytokine signals secreted by T-cells?
TLS Online TPP Program

#Question id: 3257

#XL - T Zoology

Which of the following statements about evolution is NOT true?
TLS Online TPP Program

#Question id: 2059

#XL - S Microbiology

For a protein to be an integral membrane protein, it would have to be:
TLS Online TPP Program

#Question id: 8855

#XL - T Zoology

A spongeʹs structural materials (spicules, spongin) are manufactured by the