Mitochondrial targeting presequences usually consist of a
a. hydrophobic helix.
b. hydrophobic random chain.
c. negatively charged helix.
d. positively charged helix.
Ans: d. positively charged helix.
You might also like to view...
Which would be the most likely location to find a slime mold?
A. Swiftly running stream B. Pond C. Rotting log D. Animal gastrointestinal tract
A regulatory substance binds an enzyme outside of the active site and changes its shape so that it enhances the enzyme's activity. What does this illustrate?
a. allosteric regulation b. feedback inhibition c. redox reaction d. enhancing activation energy e. an active site, bound by substrate
What is NOT a characteristic of radiolarians?
A. They have perforated shells of calcium carbonate. B. They form part of the plankton. C. They have two cytoplasmic layers. D. They have vacuoles that impart buoyancy. E. They are heterotrophic protists.
Bacteroides inhabit the intestinal tract of mammals and benefit the host by degrading which of the following?
A. Pectin B. Cellulose C. Complex carbohydrates D. All of the choices are correct.