TLS Online TPP Program

#Question id: 18849


Which of these techniques is often considered a suitable "polishing" step in a protein purification strategy?

#Unit 13. Methods in Biology
  1. Affinity chromatography (AC)
  2. Ion-exchange chromatography (IEX)
  3. Hydrophobic interaction chromatography (HIC)
  4. Size-exclusion chromatography (SEC)
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TLS Online TPP Program

#Question id: 806

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which characteristic does this double-stranded molecule have when it forms a B-DNA structure?

TLS Online TPP Program

#Question id: 807

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forces can stabilize a normal DNA double-helix?

TLS Online TPP Program

#Question id: 807

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forces can stabilize a normal DNA double-helix?

TLS Online TPP Program

#Question id: 808

#Unit 1. Molecules and their Interaction Relevant to Biology

Which, if any, of the following statements is false?

TLS Online TPP Program

#Question id: 809

#Unit 1. Molecules and their Interaction Relevant to Biology

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which of the following double-stranded DNA molecules would denature at a lower temperature than the 40 base-pair double-stranded molecule described above?

TLS Online TPP Program

#Question id: 810

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements concerning the process of spontaneous folding of proteins is false?