Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 4298
TLS Online TPP Program

#Question id: 4511

The proteins are not needed for the splicing reaction itself, because

#Unit 3. Fundamental Processes

  1. In vivo, the intron is complexed with several proteins that help stabilize the correct structure-partly by shielding regions of the backbone from each other.

  2. The negative charges provided by the phosphates in those backbone regions would repel each other if shielded.

  3. In vitro, high salt concentrations (and thus positive ions) compensate for the absence of these proteins.

  4. Only a and d

More Questions
TLS Online TPP Program

#Question id: 2048

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NEVER related to poor MHC-linked immune response?
TLS Online TPP Program

#Question id: 26560

#Unit 3. Fundamental Processes

There are three region are found in pre miRNA lower stem, upper stem, & terminal loop, which one is responsible for the generation of mature miRNA
TLS Online TPP Program

#Question id: 3611

#Unit 8. Inheritance Biology

ABO blood group system is due to
TLS Online TPP Program

#Question id: 1419

#Unit 4. Cell Communication and Cell Signaling

Mitochondrial permeabilization can be induced by compounds that poke small holes in the outer membrane. This would cause:
TLS Online TPP Program

#Question id: 12229

#Unit 10. Ecological Principles

Community ecologists would consider which of the following to be most significant in understanding the structure of an ecological community?