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- Question
a-amylose is similar to
Options- A. ?-sheets
- B. ?-turned coils
- C. ?-helices
- D. the hydrophobic core
- Correct Answer
- ?-helices
- 1. Which pyrimidine base contains an amino group at carbon 4?
Options- A. Cytosine
- B. Thymine
- C. Uracil
- D. Adenine Discuss
- 2. Molar absorbtivity is the measure of the
Options- A. amount of light absorbed per unit length
- B. amount of light absorbed per unit concentration
- C. amount of light reflected and absorbed per unit concentration
- D. None of the above Discuss
- 3. Which of the following is not a sensible grouping of amino acids based on their polarity properties?
Options- A. Ala, Leu, and Val
- B. Arg, His, and Lys
- C. Phe, Trp, and Tyr
- D. Asp, Ile, and Pro Discuss
- 4. Agarose a porous matrix used in various molecular biology technique is made by repetitive units of
Options- A. maltose
- B. agarobiose
- C. agar
- D. none of these Discuss
- 5. Which of these is part of the lymphoid system in humans?
Options- A. Liver
- B. Stomach
- C. Tonsils
- D. Kidneys Discuss
- 6. Sickle cell disease is due to
Options- A. a mutation in the beta chain of Hb
- B. a mutation in the alpha chain of Hb
- C. infection with a parasite
- D. none of the above Discuss
- 7. Immunoaffinity chromatography can be used in biochemical applications to
Options- A. break down antibody structure
- B. purify protein antigen
- C. break down antigen and analyze quantitatively
- D. none of the above Discuss
- 8. The ?-amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .
Options- A. 1.1, and 12.1
- B. 6.5, and 8.0
- C. 3.3, and 10.5
- D. 2.2, and 9.4 Discuss
- 9. The immunoglobulin fold is
Options- A. found only in IgG molecules
- B. a ?-barrel composed of a three- and a four-stranded antiparallel ?-sheet
- C. both (a) and (b)
- D. found six times in the IgG molecule Discuss
- 10. Which of the following is a purine?
Options- A. Cytosine
- B. Adenine
- C. Thymine
- D. Uracil Discuss
More questions
Correct Answer: Cytosine
Correct Answer: amount of light absorbed per unit concentration
Correct Answer: Asp, Ile, and Pro
Correct Answer: maltose
Correct Answer: Tonsils
Correct Answer: a mutation in the beta chain of Hb
Correct Answer: purify protein antigen
Correct Answer: 2.2, and 9.4
Correct Answer: a ?-barrel composed of a three- and a four-stranded antiparallel ?-sheet
Correct Answer: Adenine
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