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TLS Online TPP Program

#Question id: 3918

Which of the following is true, concerning rho?

#Section 3: Genetics, Cellular and Molecular Biology

  1. It is a heptameric protein with potent ATPase activity.

  2. It has an affinity for single-stranded DNA .

  3. It may function as an RNA-DNA helicase.

  4. None of the above

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TLS Online TPP Program

#Question id: 149

#Section 2: General Biology

The pKaʹs of the side chain group and the α-carboxyl group of glutamate are 4.1 and 2.1, respectively. Which statement accounts for this difference?
TLS Online TPP Program

#Question id: 150

#Section 2: General Biology

How do the pKa values of an ionizable side chain compare when the amino acid is free versus when it is in a polypeptide chain?
TLS Online TPP Program

#Question id: 151

#Section 2: General Biology

The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pHCOOH = 2.0; pHNH2= 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true?
TLS Online TPP Program

#Question id: 154

#Section 2: General Biology

The peptide bond is which of the following?
TLS Online TPP Program

#Question id: 155

#Section 2: General Biology

Which amino acids are linked in phenylalanylglycine?
TLS Online TPP Program

#Question id: 156

#Section 2: General Biology

What is the N-terminal for the pentapeptide Val-Ile-Glu-Arg-Tyr?