TLS Online TPP Program

#Question id: 11394


Foods can be preserved in many ways by slowing or preventing bacterial growth. Which of these methods would not generally inhibit bacterial growth?

#Unit 9. Diversity of Life Forms
  1. Refrigeration: Slows bacterial metabolism and growth.
  2. Closing previously opened containers: Prevents more bacteria from entering, and excludes O2.

  3. Pickling: Creates a pH at which most bacterial enzymes cannot function.
  4. Canning in heavy sugar syrup: Creates osmotic conditions that remove water from most bacterial cells.

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TLS Online TPP Program

#Question id: 12919

#Unit 13. Methods in Biology

Which of the following statement is not correct about RT-PCR. 

TLS Online TPP Program

#Question id: 12920

#Unit 13. Methods in Biology

The development of isothermal systems such as the ____ DNA amplification system do away with the need for a thermal cycler and have the advantage of being able to be used outside the laboratory.

TLS Online TPP Program

#Question id: 12921

#Unit 13. Methods in Biology

Match the following:-
A. Gene probe production.              i. Novel proteins
B. Genome mapping.                       ii. PCR mutagenesis
C. Protein Engineering.                 iii. Sequence tagged sites
D. Gene Editing.                                iv. Use with blots

TLS Online TPP Program

#Question id: 12922

#Unit 13. Methods in Biology

 Match the following:-
1. Ligase chain reaction.              i. Mutation detection
2. Nucleic acid sequence based   amplification.                            ii.Non isothermal                   
3. Loop mediated isothermal amplification.                      iii. Viral detection
4. Branched DNA amplification.   iv.parasitic disease

TLS Online TPP Program

#Question id: 12923

#Unit 13. Methods in Biology

Name the technology which is used as a means of identifying the initial concentrations of DNA or cDNA template used.

TLS Online TPP Program

#Question id: 12924

#Unit 13. Methods in Biology

In order to quantify unknown DNA templates, a standard dilution is prepared using DNA of known concentration. As the DNA accumulates during the early exponential phase of the reaction,an arbitrary point is taken where each of the diluted DNA samples cross. This is termed as_____