Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 3799
TLS Online TPP Program

#Question id: 4012

Why is the methylguanosine cap added to mRNA before the poly(A) tail?

#Unit 3. Fundamental Processes

  1. because the cap is added to the 5' end before the 3' end is fully transcribed

  2. because the cap is added to the 3' end before the 5' end is fully transcribed

  3. because the cap is required for the addition of the poly(A) tail

  4. none of the above

More Questions
TLS Online TPP Program

#Question id: 31325

#Unit 3. Fundamental Processes

110-residue long protein containing only 100 bonds about which rotation can occur. Assume that 3 orientations per bond are possible. Based on these assumptions, how many conformations will be possible for this protein?
TLS Online TPP Program

#Question id: 1830

#Unit 4. Cell Communication and Cell Signaling

Secretory IgA protects external mucosal surfaces by:
TLS Online TPP Program

#Question id: 2788

#Unit 2. Cellular Organization

DNA that is transcriptionally active
TLS Online TPP Program

#Question id: 11428

#Unit 2. Cellular Organization

Each monomer of aquaporin1 has six transmembrane helical segments and two shorter helices, both of which contain the sequence:
TLS Online TPP Program

#Question id: 10758

#Unit 6. System Physiology – Plant

The component of the soil water potential is hydrostatic pressure  (ψp) ,