Practice Questions

TLS Online TPP Program

#Question id: 2456

If the activity of thymosin β4 was inhibited in fibroblasts, the overall effect would be:

#Unit 2. Cellular Organization

a decrease in cell locomotion because less actin would be recruited to the leading edge.
an increase in cell locomotion because there would be a higher concentration of actin available.
no change in cell locomotion because thymosin β4 doesn’t interact with Rho, Rac, or Cdc42.
decrease in cell locomotion because there would be a higher concentration of actin available.

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TLS Online TPP Program

#Question id: 23875

#Unit 13. Methods in Biology

One successful form of gene therapy has involved delivery of an allele for the enzyme adenosine deaminase (ADA) to bone marrow cells of a child with SCID, and delivery of these engineered cells back to the bone marrow of the affected child. What is one major reason for the success of this procedure as opposed to many other efforts at gene therapy?

TLS Online TPP Program

#Question id: 23876

#Unit 13. Methods in Biology

Which of the following is one of the technical reasons why gene therapy is problematic?

TLS Online TPP Program

#Question id: 23877

#Unit 13. Methods in Biology

Which of the following would be a reasonably efficient technique for confirming the diagnosis of CML?

TLS Online TPP Program

#Question id: 23878

#Unit 13. Methods in Biology

Why would Gleevec most probably cause remission of the disease?

TLS Online TPP Program

#Question id: 23879

#Unit 13. Methods in Biology

One possible use of transgenic plants is in the production of human proteins, such as vaccines. Which of the following is a possible hindrance that must be overcome?

TLS Online TPP Program

#Question id: 23880

#Unit 13. Methods in Biology

Which of the following tools of recombinant DNA technology is incorrectly paired with its use?