TLS Online TPP Program

#Question id: 361


Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.

#I Life Science/ Life Sciences Group – I-V
  1. 90%

  2. 95.2%

  3. 89.4%

  4. 5%

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TLS Online TPP Program

#Question id: 5252

#SCPH28 | Zoology

Which type(s) of genetic transfer lead to incorporation of new DNA into the bacterial chromosome?

I. Conjugation mediated by F factor

II. Hfr mediated conjugation

III. Transduction

IV. Transformation

TLS Online TPP Program

#Question id: 5253

#I Life Science/ Life Sciences Group – I-V

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the resultshould be

TLS Online TPP Program

#Question id: 5253

#SCPH05 I Biotechnology

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the resultshould be

TLS Online TPP Program

#Question id: 5253

#SCPH06 I Botany

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the resultshould be

TLS Online TPP Program

#Question id: 5253

#SCPH28 | Zoology

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the resultshould be

TLS Online TPP Program

#Question id: 5255

#SCPH05 I Biotechnology

Which of the following is a structure that permits conjugation to occur?