Discussion
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- Question
Palmitate has 16 carbon atoms with
Options- A. 2 double bonds
- B. 3 double bonds
- C. One double bond
- D. None of these
- Correct Answer
- None of these
- 1. A protein that binds two ligands in a non-cooperative manner will show
Options- A. a sigmodial binding curve
- B. a hyperbolic binding curve
- C. a linear Scatchard Plot
- D. both (b) and (c) Discuss
- 2. O2 binding to hemoglobin results in
Options- A. 100-fold higher affinity for the last O2 bound than for the first
- B. extensive protein conformational change
- C. both (a) and (b)
- D. 100-fold lower affinity for the last O2 bound than for the first Discuss
- 3. An organism's first line of defense against attack by an invader such as a virus or bacterium is usually
Options- A. to flee or hide
- B. its body wall
- C. a specific immune response
- D. a nonspecific immune response Discuss
- 4. Antigenic determinants bind to which portions of an antibody?
Options- A. Variable regions
- B. Constant regions
- C. Only light chains
- D. Only heavy chains Discuss
- 5. The competitive immunoassay can be used
Options- A. to detect very small amounts of antigen
- B. to detect antibody associated with allergies (IgE)
- C. both (a) and (b)
- D. commonly to detect trace amounts of drugs. Discuss
- 6. Agarose gel electrophoresis and pulsed field gel electrophoresis may be used to resolve respectively
Options- A. 2000 kb and 20kb DNA
- B. 1000 kb and l0kb DNA
- C. 20 kb and 2000 kb DNA
- D. 10 kb and 1000 kb DNA Discuss
- 7. Different form of a plasmid, on an agarose gel, after electrophoresis may be in which of the following sequence in decreasing molecular weight?
Options- A. Open circular, super coiled, linear plasmid DNA
- B. Linear plasmid, open circular, super coiled plasmid
- C. Open circular, super coiled, linear plasmid DNA
- D. Open circular, linear plasmid, super coiled plasmid Discuss
- 8. The glycosidic bonds in DNA and RNA
Options- A. connect the sugar to the base
- B. can be hydrolyzed by OH- ion
- C. stabilize Watson-Crick H-bonds
- D. are free to rotate over about 180° Discuss
- 9. The membrane proteins that catalyze active transport reactions differ from soluble enzymes as
Options- A. they are permanently changed during the reaction
- B. the substrates of the reaction are all outside the cell
- C. they do not enhance the rates of reaction
- D. the products of the reaction move in a specific direction Discuss
- 10. Peptidoglycan is a complex consisting of
Options- A. oligo-saccharide and protein
- B. polysaccharide and protein
- C. mono-saccharide and protein
- D. aminoacid and carbohydrate Discuss
More questions
Correct Answer: both (b) and (c)
Correct Answer: both (a) and (b)
Correct Answer: its body wall
Correct Answer: Variable regions
Correct Answer: both (a) and (b)
Correct Answer: 20 kb and 2000 kb DNA
Correct Answer: Linear plasmid, open circular, super coiled plasmid
Correct Answer: connect the sugar to the base
Correct Answer: the products of the reaction move in a specific direction
Correct Answer: oligo-saccharide and protein
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