TLS Online TPP Program

#Question id: 18777


which of the following technique using antibodies labelled with fluorescent molecules can be used to visualize antigen on or within cells.

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. Fluorescence microscopy
  2. Western blotting
  3. electrophoresis
  4. nested pcr
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TLS Online TPP Program

#Question id: 5247

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is not a protein or group of proteins required for conjugation to occur?

TLS Online TPP Program

#Question id: 5248

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is a description of generalized transduction?

TLS Online TPP Program

#Question id: 5249

#Section 3: Genetics, Cellular and Molecular Biology

What is the best explanation for why Bernard Davis didn't observe generalized transduction in his U tube experiments?

TLS Online TPP Program

#Question id: 5250

#Section 3: Genetics, Cellular and Molecular Biology

A researcher would like to map the location of galE and trpA genes in a new species of bacterium that appears to be closely related to E. coli. He decides to use cotransduction, and generatesnappropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?

TLS Online TPP Program

#Question id: 5252

#Section 3: Genetics, Cellular and Molecular Biology

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

#Section 3: Genetics, Cellular and Molecular Biology

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