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TLS Online TPP Program

#Question id: 290

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

#SCPH28 | Zoology

  1. Ionic bonds on the external surface of the folded protein are more stable than those buried in the protein interior.

  2. 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.

  3. Ionic bonds can only form between acidic and basic polar charged amino acid R groups in a specific pH range.

  4. Ionic bonds only exist in inorganic molecules.

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TLS Online TPP Program

#Question id: 4338

#SCPH28 | Zoology

Altering patterns of gene expression in prokaryotes would most likely serve an organism's survival by __.
TLS Online TPP Program

#Question id: 4339

#SCPH01 Biochemistry

In positive control of several sugar metabolism-related operons, the cAMP receptor protein (CRP) binds to DNA to stimulate transcription. Which of the following environmental conditions causes an increase in CRP activity in stimulating transcription?
TLS Online TPP Program

#Question id: 4339

#SCPH05 I Biotechnology

In positive control of several sugar metabolism-related operons, the cAMP receptor protein (CRP) binds to DNA to stimulate transcription. Which of the following environmental conditions causes an increase in CRP activity in stimulating transcription?
TLS Online TPP Program

#Question id: 4339

#SCPH06 I Botany

In positive control of several sugar metabolism-related operons, the cAMP receptor protein (CRP) binds to DNA to stimulate transcription. Which of the following environmental conditions causes an increase in CRP activity in stimulating transcription?
TLS Online TPP Program

#Question id: 4339

#SCPH28 | Zoology

In positive control of several sugar metabolism-related operons, the cAMP receptor protein (CRP) binds to DNA to stimulate transcription. Which of the following environmental conditions causes an increase in CRP activity in stimulating transcription?
TLS Online TPP Program

#Question id: 4340

#SCPH01 Biochemistry

There is a mutation that is found in E. coli in the repressor that results in a molecule known as a super-repressor because it represses the lac operon permanently. Which of the following characteristics would you expect to observe in such a mutant?