Practice Questions

TLS Online TPP Program

#Question id: 290

Which of the following is a TRUE statement about ionic bonds in protein structure:

#Unit 1. Molecules and their Interaction Relevant to Biology

Ionic bonds on the external surface of the folded protein are more stable than those buried in the protein interior.
In an ionic bond, a hydrogen atom carrying a partial positive charge on the electronegative atom of one covalent bond interacts with the partial negative charge of an electronegative atom of a second polar covalent bond.
Ionic bonds can only form between acidic and basic polar charged amino acid R groups in a specific pH range.
Ionic bonds only exist in inorganic molecules.

More Questions

TLS Online TPP Program

#Question id: 23674

#Unit 13. Methods in Biology

Why is Taq polymerase used in PCR rather than DNA polymerases from other sources?

TLS Online TPP Program

#Question id: 23675

#Unit 13. Methods in Biology

After ten cycles of PCR, by approximately what factor will the number of DNA molecules in a sample be increased? Assume maximum efficiency.

TLS Online TPP Program

#Question id: 23676

#Unit 13. Methods in Biology

What is the purpose of the heating cycle during PCR?

TLS Online TPP Program

#Question id: 23677

#Unit 13. Methods in Biology

Which of the following is not an application of PCR?

TLS Online TPP Program

#Question id: 23678

#Unit 13. Methods in Biology

Which component is not necessary for a PCR experiment?

TLS Online TPP Program

#Question id: 23679

#Unit 13. Methods in Biology

Which is not an important feature of site-directed mutagenesis of cloned DNA?